Natalie Starkey, London, California discussed on StarTalk Radio
Comets addition with our friend and colleague, Natalie Starkey, Natalie phoned in from London outside a London, we miss you. Stay here for three years, and then you just left us. No, I miss California as well. But it's really far from Himes. I it's nice to be back in the rain joy. Said no one ever. She she Briggs it Brexit. Yes. Yes. So so sorry sorry. So Mark my co-host for today. What do you have for us? Here we go go. Void Walker ninety two Instagram. Are there any asteroids with their own natural satellites currently known if so how common or uncommon is this and how does the dynamic affect traff tracking and understanding trajectory of the asteroid. Nice. That makes sense earlier lean that quite a lot of stories have moons natural satellites around them, and it's probably other bits of material of that same asteroid. But when show 'cause we haven't studied them in detail, one of the problems is that we can't actually see them raise late because they asteroid themselves small NFL that means around the even smoother say we found about I think it's two hundred moons around asteroids. Now say we definitely knew that that we want to study the more detail because it will tell us more about that object is self and how the object formed do think those asteroid do you think those moons dislodged from the asteroid itself to become one option? All it could be that they captured them like say, some of the means that we see around planet Sirri the captured moon, so that foam someone else in the system to that planet, and then they succeed at planet was laude and say this gravity attracted other objects to it. Alright main for example, didn't in play formed from the itself during a massive collision about four and a half billion years ago, and it basically threw off. Orion planet, and then it coalesced would mood, and it was then Trump with the so this different ways to form them. But we need to study more of them to figure out exactly how they old. That's question. Well, said well said Richard Stenhouse from Facebook. Hi, guys, loved the show kisses. I'm enlisting on Spotify. Since September twenty eighteen whilst I'm at work. And I'm as far back as season two can't get enough. A regular Natalie to it. Anyway, my question is is there a point between stars where comets or asteroids are under no influence of gravity at all. And if they somehow lost momentum would they hang in that space till the end of time from north Wales. UK I love it. Love the question. Great question because I actually Amy founds out recently myself, some of the comments like the cloud, which is the the cloud of material outside of our kind of surrounds us this system. So everything else that is this MS on a plane on the disc will the planet little comments asteroids. And then we've got this old cloud around us, which is always icy objects of which we actually have never really seen any of them because this so far away and some of them the edge of that cloud a far away that that will not gravitationally bound to our rain sun. And they're always close to the next all systems I secure enough. I don't know what happens to that. I mean, I guess maybe some very clever astrophysicists may figure out what is happening to these objects out there. But, but yeah, they could easily be turbine. We would say they might be pushed around by the gravity of another star system. And then and then even thrown out of our sight is completely will pushed in so they actually come in and visit visit the song on the innocents system. But but that's a great question susceptible. We the sun the planets and everything that the family role orbiting the center of the galaxy among other stars. So even if you have a precariously positioned comet at the edge of this or cloud, and it doesn't have a gravitational allegiance eventually will move. We're moving past other stars. Somebody's gonna snatch it. Yes. Or perturb it and have descend back down into our star. So so, yeah, the things are always in motion. If if you're without allegiance that wouldn't be for long. I'm so. Jealous. It just to be clear or is named for a guy named John..