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The collision and send them back to earth. they will use telescopes to observe how much the impact changed the astroid's trajectory in space. the point is to add this diversion method to keep astroids out of earth's orbit. to quote nasa's defense planetary officer linda johnson, the right time to deflect an asteroid is as far away from the earth as we can. who better to talk than bill nye, ceo of the planetary society, also known as the science guy. great to see you tonight in an area of deep expertise for you. let's talk about this. what is this -- what is the aim here that we're going to def...

And this will prove or disprove the hypothesis that this so-called kinetic impact, energy impact, could deflect an asteroid in the future and, dare i say it, save the world. >> well, you and i are of an era where we had some great science fiction shows and books. and in those they would have just blasted any asteroid that threatened earth to smithereens. we apparently don't have that technology? >> no. plus there's a few problems with that. you'd have to get a large, let's say, nuclear weapon on top of a rocket and shoot it into space. all your allies and adversaries would have to trust you do...

Method, this diversion method to their strategy to keep asteroids out of earth's orbit. to quote masses planetary defense officer, the right time to deflect an asteroid is as far away from the earth as we can. what who better to talk than bill nye, ceo of the planetary society, also known as the science guy. bill, thanks to see. you will in an area of deep expertise for. you let's talk about. this what is the aim here that we are going to deflect asteroids had ever earth so that the misses? >> yes. so when i was a kid nobody had a good hypothesis of what happened to the h&m disorders. but now ...

Of the smaller asteroid. and this will prove, or disprove, the hypothesis that the so-called connect the impact energy impact could deflect nash trade and the future and, dare i say, save the world. >> well you and i are of an era where we had some great science fiction shows and books. and in, those they would've just blasted any asteroid to threaten earth to smithereens. we apparently don't have that technology? >> no. and there's a few problems with that. you would have to get a large, let's say, nuclear weapon. on top of a rocket and cheated into space. all your allies and adversaries woul...

Catastrophic. so some day in nonscience fiction fashion, we're going to have to deflect one. so this didymos binary asteroid, didymos and dimorphos, if you're into happy naming, is an asteroid where you have an asteroid that has a wide center like this double strawberry and then you have another asteroid going around it like the blueberry. so if you can hit the blueberry with a spacecraft, like these strawberry leaves, then you can slow this smaller asteroid down ever so slightly, ever so slightly, and then when an object is closer to the -- when a smaller object is closer to the larger object...