Italian Space Agency, Dr Nancy Xiaobo, Dr Actually discussed on Quirks and Quarks
So what are you going to see all the way in as it's heading towards the straight so from the camera will be able to get really close views of the actual impact site because that's what that cameras going to be looking at when it comes in but Dr Actually has accused sat with it too. It's called Leah Q. The Light Italian cubes for imaging of Asteroids and it's contributed by the Italian Space Agency riding along on the NASA dark mission and about five days ahead of time the DART spacecraft will kick this little cubes out off and kick it far enough away that it doesn't hit the asteroid but it will be able to take some pictures of the actual impact when it happens because you have to asteroids here going around each other in space. How does that enable will you to track what happened with the telescopes on Earth from Earth telescopes. They look like a single point of light. You can't actually make out the fact that it's two asteroids but what you can can make out is that the brightness of that point of light changes roughly on this twelve hour period and that's because the smaller asteroid passes in front of or behind the larger asteroid and as it does this it changes the brightness so it's like a little mini clock out there that you can look with your telescopes and you can see very accurately what that period is and it's actually eleven hours and fifty two minutes right now and so after the DART spacecraft crashes into the smaller one. We'll look at telescopes see what that period is and we don't know what the exact the answer is going to be. Which is why we're doing this test but the the models suggests. It's going to be something a change of about ten minutes while we keep having these asteroids showing up almost by surprise the one just win by the earth. We only heard about it a couple of days before what's being done to try to monitor these things that are out there well. There's a lot that's being done. I'm using Earth based assets. We've got telescopes that are tracking these these objects but yeah there's we believe that of something about the size of Dart's target this one hundred and sixty meters sort of object. We think that we are only actively tracking about a third of that population right now in the near Earth object space so we think that there's about two thirds of those asteroid population that are still waiting to be discovered. and one of the good ways to do that is to put something into space pity that a lot of the recommendations have been to do a space space telescope to search for near. Earth Asteroids and I think that it's getting closer to show thank get very much for your time. Thank you for having me Dr Nancy Xiaobo's Coordination Lead for Nastase Double Asteroid Redirection test. She's also a planetary scientist pissed at Johns Hopkins Applied Physics Laboratory in Laurel Maryland. Will they lost the election now. They want to steal this. Would this president of the United States stooping.