11 Burst results for "Spence Nets"

"spence nets" Discussed on Space Nuts

Space Nuts

04:59 min | 4 months ago

"spence nets" Discussed on Space Nuts

"The fifteen seconds guidance been journal and nine technician sequence spence nets three to four or five space nuts. Bill good who once again. Thanks for joining us. This is the space knots. Podcast episode two hundred and fifty two good grief. My name's andrew dunkley your host joining me again and as always is professor fred watson astronomer. Large red eye andrew. How you doing. I am fine thank you. I'm very well. Thank you good news with a paper out and things of that so oh yes yes. I finally finished the entire process of getting. The book organized the type settings done a spellcheck has done the whole proof reading processes over. I think it's been proof. Read three times and then we got it up to the publisher. We got the cover. Everything's ready and it will be released on. May the thirty first in paperback. This is the hitler paradox and will available now if you want to download the book now. But you're gonna love this fred but we got everything. Done everything checked and yesterday. I just thought. I'll just see what's going on. It's it's popped up on amazon. In less than twenty four hours of being sent to my distributor extraordinary it usually takes a wall. Let's austrailia and in at amazon dot com. And i thought. I'll just have a quick look and say how it all sort of came up on on the interface and reading. I think there's there's a spelling error in the very first center. Never saw it never saw now once or it. I can't be bothered fixing cost me twenty five dollars to fix one letter. I'm not gonna worry about it but it's out there. It's got rather a striking cover. And again i say to my brother stave for coming up with the concept. It is Miss it it's it's it's quite in your face but that's what i wanted because this is a story that centers around three three or four years. It's it's going to go all over the place in terms of time. Yes it is time travel story but the basis is that in the twenty two hundreds time travel is a reality. The united nations of the twenty to thirty in which is where the story starts has decided that We're gonna use this machine to right..

andrew dunkley twenty five dollars amazon twenty fred watson yesterday three times fifteen seconds one letter four years less than twenty four hours four nine technician thirty twenty two hundreds three first center Bill five space thirty first
"spence nets" Discussed on Space Nuts | Astronomy, Space and Science News

Space Nuts | Astronomy, Space and Science News

04:59 min | 4 months ago

"spence nets" Discussed on Space Nuts | Astronomy, Space and Science News

"The fifteen seconds guidance been journal and nine technician sequence spence nets three to four or five space nuts. Bill good who once again. Thanks for joining us. This is the space knots. Podcast episode two hundred and fifty two good grief. My name's andrew dunkley your host joining me again and as always is professor fred watson astronomer. Large red eye andrew. How you doing. I am fine thank you. I'm very well. Thank you good news with a paper out and things of that so oh yes yes. I finally finished the entire process of getting. The book organized the type settings done a spellcheck has done the whole proof reading processes over. I think it's been proof. Read three times and then we got it up to the publisher. We got the cover. Everything's ready and it will be released on. May the thirty first in paperback. This is the hitler paradox and will available now if you want to download the book now. But you're gonna love this fred but we got everything. Done everything checked and yesterday. I just thought. I'll just see what's going on. It's it's popped up on amazon. In less than twenty four hours of being sent to my distributor extraordinary it usually takes a wall. Let's austrailia and in at amazon dot com. And i thought. I'll just have a quick look and say how it all sort of came up on on the interface and reading. I think there's there's a spelling error in the very first center. Never saw it never saw now once or it. I can't be bothered fixing cost me twenty five dollars to fix one letter. I'm not gonna worry about it but it's out there. It's got rather a striking cover. And again i say thanks to my brother. Stave for coming up with the concept. It is Miss it. It's it's it's quite in your face. But that's what i wanted. Because this is a story that centers around three three or four years. It's it's going to go all over the place in terms of time. Yes it is time travel story but the basis is that in the twenty two hundreds time travel is a reality. The united nations of the twenty to thirty in which is where the story starts has decided that We're gonna use this machine to right..

andrew dunkley twenty five dollars amazon fred watson yesterday twenty three times fifteen seconds one letter thirty less than twenty four hours four twenty two hundreds nine technician four years first center three Bill five space three three
"spence nets" Discussed on Space Nuts | Astronomy, Space and Science News

Space Nuts | Astronomy, Space and Science News

03:11 min | 1 year ago

"spence nets" Discussed on Space Nuts | Astronomy, Space and Science News

"In fifteen seconds, Guidance Been Journal and nine technician sequenced. Spence Nets. Three To. One space. Bill good. Hello once again, thank you for joining us on the space nuts podcast episode two, one, three. My name is Andrew Dunkley you'll host joining me as always is astronomer at Lodge Fred Watson. Hello. Fred Millennia. Andrew. How're you doing? I am well, you have set a cat amongst the pigeons, my friend or more to the point a rooster amongst the hen house given that Our good friend Gregory Peck made a an impromptu appearance on the show last week and people are loving him..

Andrew Dunkley Guidance Been Journal Lodge Fred Watson Fred Millennia Gregory Peck Spence Nets technician Bill
"spence nets" Discussed on Space Nuts

Space Nuts

03:11 min | 1 year ago

"spence nets" Discussed on Space Nuts

"In fifteen seconds guidance been journal and nine technician sequenced. Spence. Nets. Three To. One space. Bill. Good. Hello. Once again, thank you for joining us on the space nuts podcast episode two, one three, my name is Andrew Dunkley. You'll host joining me as always is astronomer at Lodge Fred Watson. Hello Fred Millennia Andrew how're you doing? I am well, you have set a cat amongst the pigeons, my friend or more to the point a rooster amongst the hen house given that our good friend, Gregory Peck made a an impromptu appearance on the show last week and people are loving him..

Andrew Dunkley Fred Millennia Andrew Lodge Fred Watson Gregory Peck technician Spence
"spence nets" Discussed on Space Nuts

Space Nuts

04:14 min | 1 year ago

"spence nets" Discussed on Space Nuts

"The fifteen seconds guiding journal Chan ignition sequence spence nets three to one space. Neal's good hello again and thank you for joining us on this. The two hundred and fourth edition of the space nuts podcast. It's great to have your company yet again and joining me as always is professor Fred. What's an astronomer at large for Ed? Good I might ask and that was pretty. Ordinary is terrible. It's something that non native could really handled. So you can always pick a feick but Yeah I I do it again today. We've got a couple of launch stories to talk about the involving space x and Virgin One that may or may not happen and my own mind have happened by the time people of her podcast and the other that did happen and then it didn't so we'll talk about that. A new planet formation has been discovered by the The the bail t sandwich telescope Or The veil take as we call it the very large telescope. And we've got a couple of questions one about redshift. And we've got an audio question from Giuliano in Wellington New Zealand which will get stuck into soon. I like his question because it does bring up some philosophical concepts in terms of intellectual Or extraterrestrial intelligence finding us and we have talked about that before in terms of how would the world react if they discovered tomorrow that there's extraterrestrial life intelligent life but what if they found us? I is what we're GONNA be talking about today. So we got to tackle all of these questions and situations on space knots. So let's start off with space x Fred They rum basically gearing up for launch. This week which may or may not have happened by the time people are listening to this podcast and I think the problem they facing at the moment is weather. Exactly right unders. So yeah we we kind of hope guess. Both you and I are hoping that this is redundant information. By the time the podcast reaches the if let's one of the two pillars of act have raisin obeying adequacy and redundancy shape by the ton. Well well for redundant anyway so Story well with covering from where we sit at the moment Less than twenty four hours before the launch. It's very exciting. We have the first crude mission from the United States since the space shuttle to US astronauts banged and Doug Hurley and a US built by craft. A SPACEX FALCON nine is the the launch vehicle and crew dragon is the capsule will carry these two astronauts into orbit and of course it will be launched from pad thirty nine to cannot whether the five on the shuffles left from so a big moment in space history. And I am excited about it. I think many people a it it. It's not just about national pride The fact that the American astronauts have had to use of the Soyuz shuttle service spacecraft for the last nine years to to get up and down the space station. That of course is something that quite keen to move away from just to give more flexibility as well as anything else but It's also cheaper. It's SPACEX can do it. Cheaper than most cosmos can do buy quite a significant margin It's not a cheap trip to bit Andrew Have you got any ideas?.

United States professor Fred SPACEX Chan Neal Virgin One FALCON Giuliano Ed Doug Hurley Wellington New Zealand
"spence nets" Discussed on Space Nuts

Space Nuts

16:52 min | 1 year ago

"spence nets" Discussed on Space Nuts

"The fifteen seconds guidance journal Chan nine technician sequence spence nets three to one space bill. Good hello once again. Thank you for joining us on the Space Nets podcast episode two hundred one and thank you to all those people who sent his good wishes about achieving two hundred episodes. The three of you must've listened intently to know that it was as two hundred decide. We we do appreciate the feedback. A few people on various platforms. Santa's some NAS notes joining me as always is professor Fred Watson Astronomer Lodge. Hello Fred I under how you going good to your strident voice again. Thank you sir. Yes good to hear yours too and I hope you will still still in Oscillation assume. Yeah that's right but going well just working from home Carrying on carrying on as you do yes absolutely true and I went. We're starting to say the the rules being relaxed in New South Wales so people are starting to venture out. I think most people being very cautious but a lot of people taking advantage of the opportunity to visit family and friends on a very very limited basis and maintain social distancing et CETERA. But it looks like Whatever we've done to curtail spread of this disease has worked very well in Australia. Which is You know you got to tip you to the authorities. I now. It was a hard sale but most people have taken notice and we've with good selves down to less than a thousand active cases in the country. Now which is just fantastic. Indeed and fingers crossed. That will keep going in that direction. You know thoughts are always with people in other parts of the world where things aren't going anywhere near as well yeah. I was looking at the statistics in the United States. Today and Yeah I'm gobsmacked to be honest I don't WanNa dwell on that but G Some of those States in America really in a bad way at the moment But it's different for every country different rules. Different systems different capabilities seem to really be a factor as well but Here we are doing what we can to try and stem the todd. Now Fred we're going to talk about a quite a few exciting Situations that have arisen One of which We've only been able to talk about now. Because it's been the subject of an embargo and that's the European Southern Observatory's major announcement about blackhall. Now you and I can talk about this Because it's post embargo but this this has been sort of kept top secret wrought up to Wednesday. Not which is been Rather extraordinary and Other Fascinating Yan has to do with the ice moon of Europa which orbits Jupiter and we had a per about they twenty years ago taking Self fees of of your riper in Jupiter and everything else that sort of flights around at the twenty year old data. But now we've been able to use up-to-date technology to take another look at it and I'm guessing they've found some interesting things speaking of Europa. We've had a question from Adrian Crawford has asked a specific question about Europa. So that'll dove tile will and. Monique wants to talk about mining on the moon. The moon spending the news this week. seventy different countries. Certainly want to go back there Trouble with the Moon is nobody owns it and so this is going to turn into a scrum. Reckon so I will allow. We'll look at all those issues today on the spice knots podcast but I this very exciting announcement by the Euro European Southern Observatory about a blackhall. Which as I understand it turns out to be the nearest one to earth and it's not cemeteries I exactly. That's right so I'll say the supermassive black hole at the center of our galaxy. That's twenty five ish thousand light years away. I you know. We sit in the direction of the Constellation Secretaries But it's behind all the Dustin Merck out there but can be detected by radio ways which is why called Sagittarius Star. That's the name of the radio source so this is a different story altogether and it kind of has echoes Andrew. If something we were talking about probably about three or four weeks ago the idea that there might be many black holes out there which don't reveal themselves by anything other than the way they disturb the orbit of Sta's nearby they don't even Chretien disc of swelling materialists plumbing plummeting into them and causing rays and radio waves to miss it. Just quiet Perhaps the technical word black hole sitting there doing nothing but minding their own business but actually having gravitationally effect nearby stars and that is exactly. Excuse me that's exactly what this story is about. It comes from the European Southern Observatory and actually this discovery was not made with one of the John. Eight point two meter telescopes of the the elti. The very large telescope. It's actually one of the smaller ones. A two point to me to tell the scope Lucia which is one of the two main observatory sites at the European Southern Observatory runs in Chile. So strongly was using that telescope. Have been analyzing the motions of a star system which is only a thousand light years away. It's basically a galactic would And you know easy easy to see in fact. This style system can be seen with the naked eye. It's in the Southern Hemisphere Constellation of Telescope. Him The telescope. Which is so. I think it's Scientists in the Czech Republic and the Observatory. Self who've done this this work and the really nice part of the story is the came as a surprise to to the to the investigators. One of the scientists says we were totally surprised when we realized that this is the first Stella System with a black hole that can be seen with the unaided eye on nuts. Yeah that's big news. So what we go he. We've got the STA Whose NAME IS HR. Six eight one nine very elegant name really for it but It's a double style. Okay so that means do a binary system once overseeing another and this program that they scientists working on was a study of double star systems but what they were amazed to find was that the observations demonstrated that this was not just a double style. Not just a binary pag going around their common center of gravity that that is something else in the system and basically one of the two visible styles will be an object that he's not saying every forty days Naturally the second stop at a much greater distance from from this in a pair. So what you? What you've got is a year. We've got this two stars. One of which is orbiting the but the one of them is actually orbiting. Something else as well. That's the invisible so a Another of the CO authors Dietrich Mada who's at So he says the observations needed to determine the period of forty days had to be spread over several months. This was only possible. Thanks TO EASE. Those pioneering service observe escape do which absorb observations in my south on behalf of the scientists meeting. That's a mode of operation that actually many a straw is how country and Australia have used since Three years ago A strategic partner of the European Southern Observatory so not a service mode observing that if you need observations over a long period of time you go and spend two sitting in Zia in northern Chile so yet the local stuff that to do the observations for you. And that's how they said seventy brought that out so the the the the bottom line Andrew is once again. Here's a quote from one of the co-authors invisible object with a massive at least four times that of the sun which is what this had to be It can only be a black hole become anything else and so that is the smoking gun. They always this The new era the style to the black hole of this spinning around once every forty days around something four times as massive as the south has to be a black hole is the nearest and the conclusion is a really interesting one because Let me read the from the ace of a press release if Andrew Strong Have spotted only a couple of dozen black holes in our galaxy today nearly all of which strongly interact with their environment make their presence known by releasing powerful X rays but scientists estimate the over the Milky Wise lifetime many more stars collapsed into black holes as they ended their lives the discovery of a silent invisible black hole in. Hr six eight one nine provides clues about where the many hidden black holes in the Milky Way might be the must be hundreds of millions of black holes out there but we know about the only very few knowing what to look for should put in a better position to find them this. This isn't sorry. Go just to say might be the tip of a very exciting iceberg. This could be the first of many that found by this technique so this is not only the discovery of the nearest black hole to earth. It's also the discovery of a way of finding them. Because of the way we found this one is that what the side. That's exactly right. That's the facts are gone. That's a giant leap. Forward really is a giant leap forward. I mean we actually talks about something similar to this probably four or five months ago. A another similar discovery. But I think this one is the one that really clinches it that we've got this way of discovering black holes by looking closely at the way stars excuse me stars in Binary Systems actually orbit. It's a very powerful technique and I think. Unlv told me about two more over the years. Yes I surprised. They've only found a dozen or so in our immediate vicinity over the years but as we have discussed these things are very elusive but it Naseem sit. They've revealed to us away of of now. Finding them in we we may be finding them in their hundreds of thousands in into the future We also talked in the past about The size of Blackhall's I think you did allude to the size of this one but just Give us a reminder. How how big is this? Did you say Yeah full-time Semester? Of the Sung Sung and that sort of sit in the black hole sizing chart it is Andrew under member. Where you have this I. It is a standard black hole that we haven't really had a definition for them. We know the trade in the world of astronomy. We referred to the Stella mass black holes because his the same as a style. And you know you again if talked about this before we find black holes in basically two different categories stellar mass black holes. The kind of like this may be up to ten or twenty times the most of the sun a the supermassive black holes it up to ten or twenty billion times the mass of the sun so a very little in between and finding new objects in between these another of the challenges what you might call intermediate mass black holes because they must be out there and we we think that they look principally in the sentence of globular clusters those things that it probably the remnants of galaxies that have been gobbled up by bigger galaxies like the Milky Way so there is a picture building up about giving astronomers method of finding stellar mass black holes. The not active that. They're not emitting xrays because of the accretion disks that's a really powerful step forward and it comes about once again because of the scientists of spectroscopy you're looking for that Dukla. Wobble they the thing that reveals planets around stars the idea that a planet pulls star slightly backwards and forwards and reveals the presence of the planet. The diplo level technique may new since nineteen ninety five but the This is an extension of that in a way kind of doppler technique but for things much bigger than planets for black holes so it's a very powerful finding them yet we we oughta one submit a paper or a An application or whatever it is we do to whoever is in charge of naming objects and suggests that these be called standard mass black holes. We ought to do. What do we know astronomer? Who's got context might to do that? Fred yes I was. It's going to suggest that this would be the International Astronomical Union wouldn't we'd have to. Ya and they would say well very nice but we've already got the name for them. We Call Them. Stella's black holes and tell you much I think as far as spice Nazis come that standard black holes Andrew. We'll call them a standard blackhall from here on if we were to do so. That varies from country to country. This is fabulous new. So it'd be a heck of a lot more to learn and this is probably some chains dragging for a little while Finding a A standard blackhall so close to Earth. And did you say it was Observable with the naked I was that what I heard. Yeah that's right. It's a visible to the naked. I am I don't have a note to the Magnitude which is a technical term used for the brightness of Stars Eight You know probably about fifth or sixth magnitude which is roundabout the You know the limits of visibility with the naked eye maybe fifth magnitude So would be a good candidate for a fighter. Graph are yeah. They'll be many of them. But of course all it shows up in a photograph is a single point of lies Because e you don't see any of this structure the binary star trove it because that's only revealed by the fact that you can watch the way the styles move around with a spectograph Checking registered losses as we call it so you know the this stop it will be any image taken of that part of the sky with with modern digital cameras It'll be it'll be quite bright because he's a naked eye star but he won't show anything different about it To to to the casual Luca. It's only when he saw analyzing the motion of the component styles that you realize that there is something very very special jump in this. Yeah we're Eighties Josse Excite. When non remember that Raw Dan? It's a wonderful discovery show. We'll get to talk about it again real soon. You're listening to space nuts with your.

Andrew Strong European Southern Observatory blackhall Australia Fred Chile Fred I Sta Binary Systems Space Nets Euro European Southern Observa Fred Watson Astronomer Lodge New South Wales Chan United States Santa technician
"spence nets" Discussed on Space Nuts

Space Nuts

13:13 min | 1 year ago

"spence nets" Discussed on Space Nuts

"Guidance journal Chan nine ignition sequence spence nets three to four or five space bills. Good hello once again and welcome. Thank you for joining us on episode one hundred and ninety seven of the space nuts. Podcast where we talk astronomy and stuff. That's what that's the logo. That's that's on logos astronomy and stuff. My brother thought of that caption. I think it basically sizes up good and proper and joining me as always is professor Fred. What's an astronomer at large? Hello Fred Andrew. I'm never quite sure. Which does the astronomy. Which does this stuff sure I do this stuff and up two territory. I'm well thank you holding up working from home. Of course it's not much different from normal. And things like this. And you know our ongoing series of cosmic cosmic relief webinars all can be done from. Yes it's amazing What we what we can do from home and have productive we can still bay and I'm so thankful for the technology that's available at enables us to do this because You know twenty years ago we would really struggled even ten years ago. I think we'd have hobby problem. Absolute colleague of mine sent me a little article That she spotted in an historical document Few this was published on the seventh of November nineteen eighteen. A public notice in a newspaper says notices he by given that in order to prevent the spread of Spanish influenza all schools public and private churches. It has movie picture holes pool rooms and other places of amusement and lodge meetings are to be closed until further notice. Roseanne familiar. Yeah he was. That was that a remarkable almost exactly a century ago in newspaper. I believe so. Yeah Day Southland. The May so I'm just trying to find that extraordinary Yeah that that was published by local Bowling Club so I'm not sure the the city of Colona the in Colona so it may well have been somewhere else. He's not a strategy but that would have been happening all over the world just now. It's fascinating and terrifying all at the same time now frayed. Let's try and put a bit of comic relief into people's lives and talk astronomy exactly favorite things. Hobart last week we talked about collaboration between Airbus and the European stays space agency. Will today. We're going to talk about another collaboration involving both of those groups but also involving Jack said the Japanese Space Agency and all this is all about a mission to mercury. Something interesting is about to happen. Probably just as you're listening to this podcast and the real slow wideawake. We're also going to look at the first double helium. Coal White Dwarf gravitational wave source that's been detected by astronomers which sounds utterly confusing but very exciting all at the same time we guide to tackle a couple of questions one from pat about the appearance of Ole satellites in asker. We have talked about them before. But they're worth discussing again for all the wrong reasons really and another question this one from Peta who sort of reflecting on ad discussion about the Roche limit and has an interesting about the moon getting slightly within that limit and not going all the way crashing into earth. What would what would be the effect then? That could be interesting. So we'll have a chat about all of those things on this edition of space nuts but first fred. Let's talk about this. A collaboration Airbus Acer and JAKSA sending a probe to mercury. Now we have talked about this before. But we're reaching a critical point in this mission which is about to happen probably as we speak. Indeed it's actually from now a couple of days away tentative April twenty twenty this space craft which is called the Becky Colombo accountable. Why but I'll find out in a minute is is to exploit mercury. In fact it consists to actually which is always a double barrelled name. One is an orbiter sort of sense to observe mercury and sense the gravitational field that is the Mercury Planeta orbiter and the other one is the Mercury Mike. Nita's ferrick orbiter one is NPR and the other MNO account for Colombo. It's spacecraft will will eventually wind up in orbit around Mercury but not in the near future to say. Let me just backtrack for one minute. Because peppy Colombo of course did no. They spotted forgotten. Sepe Betty Colombo. Who was a scientist at the University of Padua Italy? And he was the man who proposed the interplanetary gravity assist mover that maneuver the way we get this gravitational kick because is really important to the story of Beppu Colombo and in particular. It's important to what we're celebrating today. I should say that Colombo himself from nine hundred twenty so he would have been one hundred years old this year but he actually sadly died in one thousand nine hundred eighty four quite a quite a young man at the time modern standards. So why are we talking about it? Because on the tenth of April Becky Colombo was actually launched. I think eighteen months ago will pass the earth at a distance of about thirteen thousand kilometers. Which is a whisker laudner collision close? It's mighty close. And that is all intentional not accidental. It is the first of a number of these gravity assist maneuvers in other words the first of a number of gravitational kicks that it will receive from the planet and as I said it's the first okay. It's doing nine altogether under a first of all the earth and then there are two with the planet Venus Yeah then six with mercury eventually going into orbit around the planet Mercury so hang on a SEC. It's going to go to mercury six times before actually stops and his. I actually are here. We are sorry. Didn't recognize you so it's all about losing energy as as the spacecraft craft you know sending spacecraft to the sun actually takes if you're going to do it all with rockets. It's a lot of energy because you've basically got to get rid of the orbital energy of the earth the fact that this Going around the sun at thirty kilometers per second after lose that to get into the solar system although paradoxically you're going to a planet orbits the Sun much faster because you get near the sun in order to stay in orbit. You've gotta go faster. She losing energy but it actively gaining speed to capture with mercury. But as I said it's an amazing story. The in total that journey is eight and a half billion kilometers which which would take the spacecraft way beyond the orbit of Erica out there the edge of the solar system so it really extraordinary and it will eighteen orbits around the sun before he actually goes into its operational orbit around the planet mercury which is shattered for the fifth of December twenty twenty-five so still quite a way away so a journey like that is not just our mercury is nearby spacecraft down there. That's what you'd think. Though I mean in terms of proximity it's much closer planet to us than the gas giants. And you'd think I will that. That's an easy trip. We can just whip over there in a few months but no no no just because I mean you could do it. Andrew but you'd need an enormous rocket to to to get the two to basically to drop it into the inner solar system and loss of energy that I that I spoke about What's IT GONNA do when it gets there? It will said the spacecraft is actually two spacecraft. Really not just one and the The the two components the planetary magnetism magnetism fake orbiter essentially give us probably those comprehensive survey if you like of mercury the characterization of Mercury's magnetic field something really important because mercury actually houses surprisingly large magnetic field. Everybody thought it would be basically dead. But it's not that was discovered by thing the Messenger spacecraft the magnetosphere of of Mercury. Because it's got a my fatal. It has a fair bit like the Earth does with you know which which defies the Sun's magnetic field and also. They're they're basically the investigators will use the the obiter the cameras on the OBITER But also its gravitational the gravitational force that it feels to to look it the interior structure and the structure on the surface. It's going to be. I think quite a spectacular mission and I think five years down the track. A little still be going strong. I think you have some interesting conversations about wrong show. We will and another good thing about this. Particular mission is. We'll get the data reasonably quickly of other missions. You do you. Don't say team month. Way as the as the old dial up connection takes so long to bring the data about which is what's new horizons of course and we've used gravity assist before to to help slingshot spacecraft to various destinations in a great example of that would have been the voyager missions because they they needed to do that to enable those craft to reach such vast distances. As far as I'm away. No that's quite right in fact pretty well. All the missions that other than wants to the planet. Mars have used this technique not sure about Galileo. I think that went straight to Jupiter but new horizons slingshotted by Jupiter. Juno actually had to slingshot from the earth. The one that's in orbit around Jupiter the moment maybe Galileo did the same thing And then Cassini had I think three or four gravitational slingshots before it before he got to before it goes to the planet Saturn. Mike I say this slingshot happens this week but it will only be the first of many such slingshots slingshot around three planets ultimately. Isn't it indeed? That's right yes so curious that the target planet is one of them. You know it makes it a bit. Strange country to share and Mars is Mars. I should say mercury is a is fascinating planet. Just just looking at it when you see some of the photos over. It's it's pockmarked it's got an ultra hot one side facing the sun. They very very cold on the other. It's it's really an interesting place. Probably gotTA learn a hell of a lot. That's right it's not a place to go for a holiday even when you're not in lockdown now getting away with this well launched eighteen months ago two thousand eighteen still. We'll watch with interest because they'll be mortell about this story probably in about five and a half years but it'll be worth waiting for your listening to space nuts Andrew gently here with professor Fred Watson.

Mercury Becky Colombo Fred Andrew Betty Colombo professor Fred Airbus Beppu Colombo Chan Japanese Space Agency Colombo Colona Fred Watson Roseanne asker Hobart Mike Peta University of Padua Italy Bowling Club
"spence nets" Discussed on Space Nuts

Space Nuts

16:37 min | 1 year ago

"spence nets" Discussed on Space Nuts

"In fifteen seconds guidance journal Chan nine ignition sequence spence nets three to one build good once again and thank you for joining us on the space nuts podcast and if my mathematics is correct this is episode one hundred ninety one but I'm Artemis to one. I didn't check. I'm pretty sure it's one hundred and ninety one minute names Andrew Dunkley and with me as always is professor frayed Watson. We're always so professional now. We Look East certainly last week. You said it was one hundred ninety so you know a little bit of logic that implies that if that was correct then this week is one hundred ninety one enough. I couldn't relate to them. It was my weakest subject at school though. I could be wrong. Never mind I mean the plot to this is not counted exactly. Well someone is. I think apple. Podcasts requires us to count. They require episode numbers. Okay so that's why we had to number them well. I didn't know that there you go well hundred ninety one makes me think you'd get a life doesn't say the same thing with us that joke before we'll try new next week coming up in this episode. We're going to talk about Jackson. The Japanese Space Agency or small dog natural which Planning a mission to The moons of Mars I think specifically phobos could be wrong about that but There's only two so we'll we'll talk about that. We'll also talk about the discovery. Thanks to the Juno Mission of water in the atmosphere of Jupiter which has got everybody. Exodus opposed finding water anywhere. All outside of Earth is exciting. And we've had a couple of really fascinating questions. Pipe through to us one from Justin Holland. Who wants to know about the Roche Limit? I went to a school with a kid named Roach so that that could have something to do with it and one. We've spoken about before but spin. Wool Scott's has a MIS messaged us from Belgium wanting to talk about the drake equation. And how accurate and reliable es and that's the equation that determines the probability of life beyond earth or in the universe in general. We'll look into that now. Last week I tell you I wanted to go on a mission with me to title my new book so at the end I'll explain the basic plot of the story without giving too much away and save you can come up with a title and I promise. Whoever comes up with the title? Should I choose to use it? We'll get a credit on the inside cover. So that's the prize Kadhafi money don't have any so but a credit in the book if if you're happy with that I'm more than happy to put your name in the cover to coming up with a title for my new science fiction novel. It's not a long one. It's actually quite a short novel. Fred. It's only about fifty thousand words or thereabouts. I read some articles about writing and as and one of the questions someone asks was. How long should my novel Bay and the answer is as long as it takes to tell the story. So they haven't found it is profound. It's very so this one's only half as long as my last one so it'll be quick read but I think I I hope people with enjoy this story. Lots of twists and turns. I really enjoy trying to keep people guessing but no keeping people guessing about the Jackson mission. Because I did sit serious about heading to Mars and taking a quick lifted greenland and ending up on Phobos. I think it is or one of the Martian moons. Indeed that's right so yeah so I. I'm very glad to pull a story out. Because they know your favorite planet and whilst Phobos and Demos are not part of Mars. Well they're certainly very closely connected tomorrow so in orbit around the planet. They were discovered in. If I remember rightly they Something like the eighteen eighty something of that sort with a strange connection to Pluto. This is coming from the depths of memory. Here let me get this right of written about this but it was a long time ago. The discovery of Damus was I think related to the Nisha Bernie Venetia. Burney was the eleven year old Oxford schoolgirl. Who Gave Pluto? It's nine so there's a factor I didn't want to check it is one of Conroy's book is one of my books get might be in stark raving mad but yeah it's a very nice connection that nice little link between the moons of Mars and the Dwarf Planet Pluto and that's the story releasing you know it's not there is more so is really interesting world. It's about firemen variety about thirty kilometers at crops. It's got curious internal constitutionists. It's very very low. Density on the suggestion is that is. It's like a piece of pumice it's porous and I. I'm not sure that we actually understand the reason for that. It in fact probably got echoes of what you have. Is it epimetheus nerve as one of the one of behind period? One of Saturn's moons has a similar composition very very lightweight and almost porous in the sense that it would flow on the surface water so very interesting place also has been suggested as a possible landing site for humans in the exploration of Mars and the great thing about landing on a world like Phobos is that you don't need the huge amount of energy to get your astronauts back off the surface of the planet so getting off of the houses will certainly less of an effort than getting off the surface of the earth. But it's not that much less than gravity is about one third on Phobos you have an escape velocity of a forty kilometers an hour which means you could get off phobos in a in a Toyota Corolla say or even on a bicycle. Well actually the fastest I've ever ridden. A bicycle is forty kilometers. Now are you there. You are so you'd be on your way back combed I now trump for some way. Probably be a catch that tessler and drive home. You might be able to catch on the ensuing so a really interesting world and the has been in the past and attempt to send a probe to. Phobos. This was a heroic Roy. Cathode should say back in two thousand eleven. The Russian Space Agency roscosmos launched spacecraft with the slightly unappealing name of Slovaks Grunt. It was it was called grunt is is just the Russian word for ground you know Landry. I Guess Phobos Grunt was launched on the eighth of November two thousand eleven but never made it from it went into a parking orbit around the earth with the idea that it will be boosted into a mouse. Transfer orbit to head off to to phobos but things went wrong it never I think the transfer orbit rocket never fired. It didn't have enough grunt grunt. Exactly set that one up for you did so the the didn't have enough grunt because I think the the didn't work at all and that temporary obits phobos grunt was in around. The Earth was very temporary one. It was not sustainable and so Following January Fifteenth of January twenty twelve out. She reentered burned up in the atmosphere. There's a big space craft. I think it was about thirteen tonnes. It was such a tragedy that did not work because verse words from Mission Control. Where did I forget to give you the fuel God Dmitri yes right? That sounds like a page out of your new nameless book right anyway. The the as I was going to say it was it would have been fabulous if the Michigan successful. Because it's an interesting class this when you look at pictures of four buses like this almost like a fruit piece of fruit and shape but he's got this enormous dent in it now which is a crater called stickney. It's one end of it is just basically a a huge crater actually with several other ones inside smaller ones but the other remarkable thing is that emanating from stickney all these grooves in the in the surface of Phobos which I guess come about because of the debris when the impact crater was formed the debris was spotted over the little world. So I'm okay to cut to the story Jackson. The Japanese Space Agency has just announced that their mission. Which is Martian moon exploration? Great Greg Marsh. Moon exploration mission is got the green light basically and will launch a probably in twenty twenty four. In fact September. Twenty twenty four is the expected launch. Time The plan is to have an orbiter which will basically orbit Mars and the the Martian The the Martian moon system I think it will also go into orbit around Phobos so and as well as orbiting itself a little bit the Moon I think then but there is also a Landau so we will expect to see images from the surface of Phobos possibly even a robot that sorry Aurora but the the big. I guess they're really cool expected. This is the possibility of a sample return when the spacecraft comes back in actually it will leave the planet twenty twenty eight August leave Mars back to Earth. Twenty twenty nine September. Of course these dates are defined by the relative orbits of the Earth and Mars. There only certain windows where you can actually make the transfer between the earth and Mars so the possibility of bringing back something from the surface of Phobos of course in doing that. Jackson will build on experience with its High Abo- space craft the two of them Which basically returned one is still on his way. Back returned samples from asteroids the first one that well known asteroid. It took our that was back in two thousand and five and more recently last year. It's Higher Busa to visited an asteroid called Rio Goo and we expect the samples from an asteroid to come back to Earth late this year and will land here in Australia warmer so that is a great experience for the Japanese Space Agency. Learning how to do this sort of thing and they will no doubt bring that expertise to bear when the mission to Phobos takes off in two thousand and twenty four. And I'll be able to talk about you. I hope so too. Is You talked about the size of busted around thirty kilometers? It is it possible. It's it's a captured steroid rather than like our moon which seems to have been created by an impact ejected from the planet and forming around the parent planet. But is it possible that day? Mosser completely different types of objects to Mars itself. Yes I think that's as well night point. Of course Mars is only the Mars is on the inner edge of the of the asteroid belt so asteroids that tend to cross the MAS. Might WELL BE CAPTURED. So tiny objects you know day. Mosses aiden smaller zone eight ten kilometers of something like that nothing like our own moon captured asteroids is probably the way that that viewed and that might explain why. Phobos has got this peculiar construction a constitution. Why it's not. It's not a solid world a black most asteroid die. It's a very unusual little. We probably won't know much about its origins until after we get they samples back boss in twenty twenty nine so that's only nine years away so it's not that far when you think that what we were doing in two thousand eleven which is nine years ago that seems very recent indeed so the missions purposes obviously to learn as much as we can about. Phobos and Howard is widely saying what it is made of. And why it's and also to give Jackson and more experience and learn from this and move on to bigger and better missions that yes that's right and actually on that on that point. It's it's an international collaboration as well so the Japanese space agency is responsible for the spacecraft. Getting you know doing the little maneuvering and all the rest of it. But there are a number of international partners to so they're eleven instruments onboard Amex four of which will come from partners in international conciliate including NASA Europeans based agency the French base agency as an ES and de la the German Space Agency. So that these are all like guest instruments almost onboard the onboard the spacecraft Jackson will also provide instruments including basically a telephoto Lens Narrow Angle camera which will give. I hope stunning pictures of the surface of the Phobos and all kinds of other instruments including laser altimeter does monitor a mass spectrum analyzers so we know what Chad particles are around those moons and of course all the equipment required to take the sample and bring it back the website. An ex website says that the space craft when it lands. It would land for several hours to collect a sample of at least ten grams. Using a cora that can gather material from a minimum of two centimeters below the moon's surface lousy and most importantly a low fuel warning light. Donate one of those..

Japanese Space Agency Jackson German Space Agency Russian Space Agency Andrew Dunkley Jackson mission Chan Mars apple stickney professor Watson Justin Holland Twenty twenty Roach Nisha Bernie Venetia Kadhafi Fred Mission Control greenland
"spence nets" Discussed on Space Nuts

Space Nuts

15:30 min | 1 year ago

"spence nets" Discussed on Space Nuts

"The fifteen seconds guidance journal Chan nine technician sequence spence nets three to one space bill. Good hello again and thank you so much for joining us on this. The one hundred and ninetieth edition of the space. And that's podcast. My Name's Andrew. Dunkley your host with me as always the long-suffering professor of Fred. What's I've read? Yeah I do. I suffer all the time once a week at least once a week. That's right I'm fine. Thank you sufferings. Not something that I do that much. You never know it might be down the track. Well let's not go the as the famous Fred. What's an always not going to say that more often than most? Yes you are. Yes Charlotte one has to use these expressions sometime and I'm delighted to be able to use it on space fair enough today. We've got quite a few things to talk about the new horizons. A probe is sent back some data or analyze some data from it which is basically written off one planet formation theory which is interesting. It's good that we can write something off. I think that whittles down possibilities. We're also GonNa talk about something exciting. That made the news this week in Australia. And that was the official opening of the Australian Space Agency and both people have got a disk. H which is amazing. I didn't think the budgeted stretch there for NASA also of a similar ilk. Virgin Galactic has moved operations into the space port in fact that New Mexico referenced here probably mentioned that and we've got questions for mark mobs about the size of the universe mark. It's this big then answered and Bob Brown. Not The politician from Australia. I'm guessing what or where is space. That is rather fascinating question. When you're not at and plenty more we'll do disproving about this that and the other as well but first let's talk about new horizons the data that they have analyzed suggesting that one planet formation theory is is it raw. We have to think about that anymore. Plasticine has never been used to make no. That's right well you know. I thought it was super glue. But Y- plasticine is good at bonding any yet so this goes back to L. favorites about Sweden spoken about this celestial object for some time but last year we certainly did Because of the fly by of what was then called Ultima to lay at the beginning of last year on the on the first of January and we saw an image of selling. That looked like a snowman. This is of course an object six billion kilometers from the Sun. It's in the clip about that region of space beyond the orbit of Neptune and look like a snowman but some of the lighter images that were returned from new horizon showed that he actually wasn't snow. Snow Munch was to pancakes by side basically to flattened disks one slightly bigger than the other and join together just as in place side by side and start together whether they contact with super with super glue the whole thing rather than plus to see the whole thing is thirty six kilometres lung and the reason why everybody wants to look at this and new horizons was guided to this following its encounter with Pluto back in two thousand fifteen the reason is that this represents one of the the the building blocks of the solar system is part of the daybreak left behind during the process of planet formation is probably made mostly of ice very strong ice icy component. It will have dustin it as well. Though and the analysis that has now been revealed and basically released in scientific papers comes about eight to more than a year after the fly by. And that's partly because these things take time to to analyze but also of course because new horizons are so far away the bandwidth received from it is really slow. It's dial mode bandwidth very slow data rates and so it's like Australia's NBA in something like that. That's right a little bit better. Actually so the. The data taken a considerable length of time to to get back to Earth probably most of last year but an analysis has now been done by a number of different groups who have looked at the structure of ultimate. Should've mentioned that it now has a. It's called Arrow costs ultimately was was a ten. It just meant the furthest object that you could think of America is its name which comes from the the creation with allergy of account. Remember where I think. It's a North American an American indigenous creation mythology. If I remember right there might have got that wrong. Never mind that's alright. It's it's an object of great interest a now we believe it has done exactly what you said at the beginning which is not on the head one of the two principal theories that planet formation over one and seems to fit the bill perfectly for the other on. So what are these two theories while when when planet to form they basically full amount of the disk of dust and gas which swells around an infant star so our son at four point six billion years ago was an infant star with what's called a protoplanetary disk around it and the basic theories have been similar in some ways but this the the difference between them is really with in terms of the the violence with within which the building blocks interact so the Elliott theory which actually has a posh name is hierarchical accretion and Hierarchical Chretien? Kinda tells you what it's about. It's a hierarchical process you build things up. They crashed in any build. More things up. They crashed so they'll start off of course with with with Dust particles sticking together a bit like underneath your bed or pillow button. Well that's right actually. Not Quite as the belly button fluff is a little more dense than on the bed fluff and that's probably because there are different physical processes at play in play. What sticks these particles together in the you know the various stages of planet building is electrostatic forces. They kind of come together and join up electric statically but eventually the dominant forces gravity and so this this theory Basically the the hierarchical accretion theory says that particles stick together the ever-larger they collide they stick together more and eventually you get these things called planetary symbols which are more or less the size of ultimate totally. Our costs several tens of kilometers across those things. The old theory says okay. You get these things on the planet. Symbols themselves collided and collide quite violently and actually serve the blast themselves to paces and then all the pieces re stick together again on a is the theory that really is not supported by our costs because the alternative is that. You've got streams of what you might call pebble sized particles so the the grains stick together and grow to the size of a pebble but these are all sort of moving together in streams in orbit around the the infant star and basically the the cloud the clouds that are moving within these streams essentially just collapsed under their own gravity. And they don't basically they don't sort of go through a phase where they growing and they'll smash together they just simply grow. So you've got this. This planet symbol. Which is made of pebbles developing in the same parts of the dust cloud around the some is in our case and that's a essentially supported by Arakawa because first of all the the main point about this theory is that the interactions between the particles that are making up the planet very gentle. They're not violent collisions. The Gentle interactions and that is simple to putting together lego rather than smashing mud into itself. Ex- YES exactly exactly. So you sticking Lego together. It's a good analogy is that there are spotty lumps on the side of holes that you stick amazing too but the reason why our cost supports view is that it's structured. You've got this these two pancake shaped objects side by side Which have come together at a very very gentle right. They described by some of the authors that basically kissed together so Such a delicate Interaction One of the scientists worked on this work says that if they were spacecraft that we'll be talking. There is no indication that the merger was violent catastrophic. So you've got this sticking together there's another point out. This is well that that again suggests a great degree of stability in the solar system. And that's the fact that there are these two pancakes around edge to edge so that both lying in the same plane essentially. It's his other flat on the table. That would not have accidentally but if they'd been in orbit around one of the one another for a very long time then you would get this alignment of that of that principle planes. They would align in the way that they have so once again. It speaks of things happening in a very very stable way and finally another piper a different set of research but it points out that the imagery we now have back from new horizons of this object. Show it is incredibly uniform in color and composition. It's not it's not an object with great variations in his in its color and shading and things of that so and so what they're saying is once again that points to a uniformity of the objects that made it up the pebbles basically went into producing this. This really remarkable looking celestial object all the scientists involved with a very excited not non less than Allen Stern who you will remember is the principal scientists principal investigator for the new horizons mission. He was in Australia thinking a year or two ago and we got to chat with him. Great Guy full of antennas him very very interesting to speak to but he He has said well in in throwing away the hierarchy CL- accretion model this with all the collisions. He says way is a team Canada. Imagine how hierarchical accretion could have created the Eric of that. We see he says so that kind of knocks down the head but he also says that they're looking for a new target beyond our costs for New Horizons to visit. He says we've got fuel left in the tank. The spacecraft is healthy and we have the power to run fifteen years aggressive. Sam Vision is defined another object that we can and that will be fantastic if they can do that. The problem is these belts objects these objects deep in the solar system Really relatively small now is thirty seven kilometres lung but it's six billion kilometers away so it is not an easy task to find it. It was found by the Hubble Space Telescope. If I remember rightly so you know. We're going to be set shameful other possible talent top Jank's out that in the depths of the solar system. It will be difficult because they're so faint so small possible on the timing of work. But is it possible that the James Webb telescopic be able to find something? I think. That's that's kind of where I was going? Yes that's right. It's it's the yeah the money just for once so. I'm not saying I'M NOT GONNA go there because that's exactly what it. Yeah and in fact. We refined some the technology on on the ground based telescopes That will help. I think the James Webb will be the one that will be used though to to to look for the next targets of opportunity for new horizons as Allenstein says that. Got Power for another fifteen years. So you've got a little bit of time in which to To search for something suitable and identify and workout whether you can change the course of the of the spacecraft to to pass it so the James Webb telescope hopefully launched next year. I think take a little while to get it in training but this might be one of these missions to scan the outer. That's the solar system trains. The people working on New Horizons. It can get really good at dominoes waiting for that thing. The you know I think you have to be a kid to be good at Lega all right. Well that's fascinating news so we can. We can write off that Hierarchy Cola creation theory. It's in the spin or as we speak because you know be something else another rock and go all right. You're listening to space nuts. Andrew Dunkley with the Professor Fred Watson. Let's take a break from the show and hear a word or two from our sponsored Gramley. Now I have to say I'm a big fan of Gramley Because I've been using it for a few years now very helpful for authors but also good for everyday life site may on a few occasions particularly spelling but also with a few issues that didn't quite make sense it's.

New Horizons Australia Fred Watson professor James Webb principal Chan Bob Brown Virgin Galactic NASA Sweden Andrew Dunkley Hubble Space Telescope technician Lega Plasticine Australian Space Agency New Mexico
"spence nets" Discussed on Space Nuts

Space Nuts

23:50 min | 2 years ago

"spence nets" Discussed on Space Nuts

"The Second Guiding Been Journal and by Agnes sequence spence nets to space reporte good thanks for joining us once again for another study I'm doing well thanks how you again Andrew Frayed I'll do is dave usually isn't it always used to the heck yes right gun show character yes now we're GonNa look to talk about today and we've got to double Bunga questions coming up one about the expanding universe and a couple of people asking similar questions about Venus after last week's episodes they will try and solve all their problems we're also look at the first all female space walk in the wake of the passing of the first ever spacewalker Alexi Leeann you've and an update on the last mass extinction sixty six million years ago they think they know for sure almost maybe what one posted we'll focus on that as well but Everett first of all the all female space walk has finally happened no issues with with spicer it's no malfunctions all good and proper and at last it's it's great news US yeah I thought it was rather poignant that this some we celebrate this milestone only a week after we're talking about the passing lane off the very first spacewalker so he I think would be impressed is that for the first time you know there's been a an active spice welcome the International Space Station which was all about actually doing some repairs the outside of the space station but by two women rather than by an author a mixed crew or an old bloke crew which is kind of squaring the way in the days that he was working in space So the two Female Space Wokers Christina Konkan Jessica Miah or Mia they they are respectively an electrical engineer and a scientist Dr Martin has a doctorate in in marine biology which is a love life it wouldn't be too many wiles and dolphins and whatever else up there we'll be able to what you buy find out that but the pose as a marine biologist you can look down on the fastness of earth and really Dan and get a good skype on what you really love to to work with yeah that's right flying at four hundred kilometres on three hundred fifty bows above the oceans would give you a different perspective on marine biology so they this mission was it was actually a Friday last week as we are recording this that mission was to to replace something called the basic day you which is sounds just like a batteries have battery charge discharge unit urgent discharge so basically they use the good night pray and it was on the port six trust structure just to give you your geography of the International Space Station actually right on the on the you know the end of the space station wear one of those huge sets of solar Donald mounted this big sets of solar panels at either end of the trust of the it's also with I evict the spice duties apparently to go somewhere they do that that's right now what what I guess also interesting is the I don't think you and I spoke about this that NASA last week unveil their new space for the next lunar Shen I've actually saying that on instagram people have been posting pictures they look spectacular yeah they do the the new moonwalking suit which is called the axiom you a knock grenade more savvy initials for the exploration extravehicular mobility unit in other words a soup for for astronauts walking on the Moon that is a law better a much improved version of what the Apollo astronauts used in particular the emphasis on the word mobility because they've changed the structure of the suits and change the fabrics and the materials used to give much better mobility around the ankles. the knees and the an actually the shoulders as well so that we won't probably won't say as much when when the next set of astronauts walk on the moon we won't see as much of that money helping that we saw falling I've only fell over pretty well because because itself was not actually very flexible but what what is also interesting about those new spicer's is that they can be made to fit anybody because they're modular in design so you can actually make one the will customize the fix to who I was wearing can you might remember I think it was back in March when we were talking about last talking about an all women space walk the reason why didn't happen was because they didn't have suits of the right size they didn't have to spacesuits the right size for for these two famous cholesterol's it actually it was it was an mcclain who was the who was the one of the participants the other one once again was was Christina Cock but on mclane didn't couldn't make the space walk because they didn't have a medium suit their full her so that's a problem will will be fixed with the new moonwalking civics which can be made any the length into a little bit of sideline knowledge she probably wouldn't aware of Fred after the astronauts came back from the moon they all became champion sacrifices because technique developed in one sixth gravity issue I'm sure it was at it's interesting talking about suits and developing a suit around for moonwalking does that bicycling main that they're gonNA have to develop a different suit for every different environment that the astronauts will ultimately face and if and when we eventually walk on is the moon suit may not be owner right for that environment that's absolutely right will be quite a different construction I think from ours that the environment is different in the sense first of all you've got an atmosphere there even though the pressure it's very low it's it's a enough different from the vacuum on the moon that you you you would construct it differently and of course that means you've also got to have that will survive the wind will survive the particles of fine dust being blown around by the None of that happens on the moon so yeah we'll be a different and in fact you know the when Nasser unveiled the new c. called again the X.. Amu suit for food that last week they also unveiled a new suit for a crew to win during during takeoff on reentry because that is an again different kind of suit and I is orange which is just in case you know there's some something untoward happens on the either going up or coming down it means you can find the astronaut very quickly because they are ensued she stands out very very much in the landscaping business on Mazda no that's right we'll be a place to do that you just blend into the background with a different color a bright yellow probably eh now it's fantastic that they've finally and when you have a delay in a situation in space regardless of the phillies like that that all females spacewalk planned but then I had to stop because of the wardrobe malfunction and it took six it's to get it going again it's just not an easy fixes it no that's right and it has to wait for the you know the calendar to be right with the personnel but I think that that also line somewhere along the along the road so any time to ask one question something like how does it feel something anyway that's what happens I mean -cations probably one of the most critical and fred jaw factors of space travel so we witnessed that during the Apollo missions and strategy was quite instrumental in an enabling some of those communications particularly during Apollo eleven so yeah it's it's fascinating the way it all comes together but yes we should again congratulate the astronauts Jessica and Cristina for the wonderful historic moment and something they'll probably never forget they won't did you do what did you do oh I replaced a battery charge discharge unit now it was parts need to be space nuts it's good to see Al Youtube numbers ever expanding almost halfway to one thousand which he's a little secret just subscribe and if you don't WanNA listen.

Guiding Been Journal Andrew Frayed Mazda phillies Agnes dave Amu Al Youtube Jessica Cristina four hundred kilometres sixty six million years
"spence nets" Discussed on Space Nuts

Space Nuts

14:10 min | 2 years ago

"spence nets" Discussed on Space Nuts

"The Second Guidance Been Journal and by Agnes sequence spence nets to kneel good hello once again thank you for joining us on the carrying around a pack of ten spice nuts is just it's not feasible we'll work on that but it's great to be with you again after trial and tribulation and travel we finally catch up with one Professor Fred Watson Hullo Fred Andrew how're you doing really well sitting near a very small rock that was discovered in eighteen seventy three in central Australia and was dubbed by US via and William ghosts as as rock but not ninety three the dual naming policy of the then government Had its name changed to the aboriginal would ooh great wonders of this country which apparently doesn't have any meaning apparently just a name rather than something that has summating to it and is yes it's one of the world's biggest I don't think it is the world's biggest but he's one of the world's biggest monolithic rocks monolith and it just sticks the middle of nowhere I've never actually been there but it's one of my goals one of the bucket list goals to go and have a look at it although why people used to be able to climate I think that's just about to come to an end if it hasn't already it's it is comes to an end very soon Monte going to have a crack not money's done it before a long time ago when it wasn't such a controversial issue tick climb as is now but she said it was very work yeah so my parents have done it and I said it was a really tough climb as life yeah yeah and they have been facilities in us so it's not outside for the faint-hearted really I'll be happy just to look at it yes so we'll I today we talking about the andromeda galaxy it appears that neighbor is very hungry and it's inviting itself over for lunch we're also going to it an asteroid breakups may well have triggered an ice age and we've got some really good questions this week a follow up to last week's planet nine a theory and how we might be able to identify planet nine if indeed it's a planet maybe it's not we got we got a question which dates back a little while but we're still playing catch up from Kevin About Jupiter's clouds and a question of mas becoming habitable as the sun starts to expand and if no longer applies to be so we'll tackle that today on episode one hundred seventy four of the space nuts cast now Fred what's Andrew and drummer up to and why is it inviting it so self over for a feed but it's a really good question as to whether for example Galaxy Inviting Andromeda andromeda inviting galaxy because that probably roughly the same size it's actually not easy to tell the remember dromedaries a galaxy rather similar in appearance to Alex Salon splattered spiral very much the mm shei-pa Milky Way galaxy about two and a half million light years away so it's relatively close in in galactic terms and in fact andromeda on Galaxy at the two biggest members of something we call rather parochial eight the local group local group of galaxies so the big debt wet weather big changes in those galaxies now we know that we've known for some time that these two galaxies are on a collision course with about four and a half billion years being the the crunch time when they actually meet the what happens when not collision takes place is a little bit counter intuitive because both galaxies have got so much space in the really a lot happens the in terms of direct collisions between stars it will probably be very few if any of those but what will happen is is the gravitational interference if one galaxy with the with another this probably will work for both galaxies because both on canal selves have pretty rich in hydrogen the raw material of styles the collision of the two hydrogen-rich galaxies will almost certainly setup shockwaves as they come together which will probably promote a burst of Steph election so there should be a lot of celestial fireworks in four and a half billion years time quite a long time to wait but diary probably goes far mitre does take vitamins era that's right excuse me so that's that's part of the story that's come from some were done by colleagues of mine in in Hillstreet Leah this is a study that his lead by Dougal Gosh getting his first name Brock I want that to me all the time it is do you still go Maceio McKay bending on whether you Saudi Scotty fi or Australia oster allies it he's he's the new the new but he's working with the grind Lewis who's a friend and colleague from the University of Sydney Grind of course a good Welsh names that you got good Scott's naming a good Welshman together update on this work which was published in the prestigious journal nature and found evidence of The ANDROMEDA galaxy growing up by consuming the smaller galaxies as long ago as ten billion years ago we know that our own galaxy has gobbled up only galaxies in fact he's in the process of doing that now with the to modulate clouds which you have both on a death spiral within within the halo of our Aleksey being stripped to their stars gravitationally attractions those styles will find their themselves part of the of the halo this very cool halo does that surrounds the flattened disk of the galaxy so what grant Dougal have done as luke tat globular clusters in the andromeda galaxy now globular clusters are sort of more or less very clusters of stars were first identified by William Herschel back in the late seventeen dudes he gave names to a lot of things in globular clusters he's one of the classes of objects that he named the We believe that they are we now believe that they are the sort of stripped-down Nuclei of dwarf galaxies in other words they they once had their own allowed retinue of styles not a hundred billion or so like the two big galaxy so several hundred billion but more like a few billion perhaps to make a Pod Wolf Galaxy excuse me I'm losing my voice as you do when you come to the the the studies that great and Dougal have done identified two clusters which they believe are ably down remains dwarf galaxies that were eaten as I said about ten billion years ago by by the andromeda Galaxy but was really interesting he's not they are in the globular clusters Renault surround the andromeda galaxy but the two are at right angles to each other suggests that the the two dwarf galaxies that were eaten up by Andromeda came from in two different directions at right angles to one another and that kind of strikes a chord because we believe that the underlying framework of the of the way galaxies distributed in space may something we call the cosmic web and it's basically a scaffolding of matter if I can put it way which it which the hydrogen congregates to because of the gravity of the matter and in doing that then you get galaxies fall under that mutual self gravitation so the suggestion as that these two globular clusters have come from two different bits of the cosmic web if I can you're not white cosmic webs likely giant honeycomb almost of Dot Mata but if you imagine galaxies being strung out along the cosmic Web and then there's andromeda sitting at a place where two of these web likes structures come together that is why you've got this you know these two clusters in all right angles to each other until what they're suggesting is the age of them is symptomatic of frenzy by the andromeda galaxy but two separate ones which might be separated by billions of years there's still work to be done on this but it's a really interesting idea and the question remains what happens in four and a half billion years time when we we dissect with Andromeda you've already said we already consuming some of these dwarf Galaxies and dramas doing the same thing but when you put two heavyweights together what what is the what is the effect well they beat another up basically pretty well matched until this some there are simulations on on the web showing what will happen to these two John uh-huh permanently oh pass each other yet they will merge permanently but it will be a long and painful process because what will I is the stars will pass through the stars will pass through one another and you know so effectively on galaxy moves through the other but it doesn't leave either of them on skype because it pulls the spiral arms out into almost straight lines it kind of unwinds the spiral arms of the galaxies in a way that we can see elsewhere in the universe weather other galaxies collided there's a very welcome pair of galaxies called the antennae because they look like the antennae of an and they've got strings strings of stars strung out along the tennis so that will be galaxy the merge path look like after you know maybe a billion years off ability is after the collision but eventually they all come back together and you'll get a really messy single Alexy made out of the two probably an his another interesting aspect to this the black holes the supermassive black holes at the center of galaxies will combine so that's unavoidable that's just going to happen I think that will happen yeah especially if this something like a direct hit the way it seems to be looking at the the future fascinating yeah we'll we'll just have to be patient while we wait for this to happen can we can say it'll it'll it'll change the sky even before the conglomeration happens I imagine that anyone or anything that's around that time we'll see we'll say the sky completely differently do the why we're saying it now I would imagine when you know in the in the lead up to the collision eh gigantic spiral galaxy in the sky as well as the Milky Way itself which we will say so it will be very dramatic and what us getting pretty well because the sound stunning into a reservoir sorry a red giant by that those we're GonNa talk about one of the questions but it would be bad luck for the southern it's family planets to be flung out of the this much galaxy but it's not impossible because the will be styles that will be flung out to dispense as I'm sure it sounds like a corporate takeover exactly serve on a universal scale yeah so we'll just have to be patient and watch that one very very slowly you're listening to space nuts with Andrew Dunkley and Fred Watson the space nuts now for as we have been doing each week just a big big thank you to patrons who put a couple of dollars in eighteen months to support the podcast there are fifty six of them now and we have a question from one of our patrons which we'll be answering shortly or offering to do so so thank you to everybody who has has decided to join us and just put a few dollars each month in two if the podcast going we really do appreciate it it's a wonderful gesture it's certainly not something you have to do the fact that you want to do it it's humbling and we we.

Fred Andrew Agnes Professor Fred Watson billion years ten billion years million light years eighteen months