CNN CNN Newsroom With Fredricka Whitfield October 10, 2021 19:58:00
Ion drives. continuing with the football analogy, if someone is running downfield, you can try to completely block them. but that's a lot of effort. or you can just push them out of bounds. and then they don't head towards the goal line. so what we have found is that if you get to an asteroid early enough that's otherwise headed towards you, and you just give it a little nudge, that will slowly have it guide out of harm's way. and this is the whole point of this test. >> so that answers the why that i was about to ask you. so it's all reemtive just to make sure that we've got a plan in place j...
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