Neil deGrasse Tyson explains NASAs asteroid-shifting DART mission
Neil deGrasse Tyson:
Deflecting an asteroid has always been the wiser, more sensible way to do this. While, yes, we're in modern times we're good at blowing stuff up. Sure. But you're not always good at knowing where the pieces end up after you've done that.
Whereas if you nudge it out of the way, yes, it's still there. Yes, and it might harm you one day in the future. But if you're good at this, nothing will ever harm you. Because you just continue to deflect them. You can send it off to the left, to the right, you can even speed it up or slow it down. But any of these will successfully, if you calculate it right, prevent yet another extinction, which the dinosaurs suffered.
And by the way, I'm pretty sure that if the dinosaurs had NASA, they'd still be here, we would have never evolved to anything more ambitious than a rodent running under him trying to avoid being orders for T Rex.
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