Running Downfield News Today

Ion drives. continuing with the football analogy, if someone is running downfield, you can try to completely block them. but thats a lot of effort. or you can just push them out of bounds. and then they dont head towards the goal line. so what we have found is that if you get to an asteroid early enough thats otherwise headed towards you, and you just give it a little nudge, that will slowly have it guide out of harms way. and this is the whole point of this test. >> so that answers the why that...