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by psunavy03 800 days ago
It still doesn't matter according to physics. There's a reason why two NASCAR cars can be going 150+ miles an hour, and yet "rubbin's racin'," but a head-on collision at 60 miles an hour will kill you. The two race cars going 151 and 149 mph rub at ~2mph relative velocity, while the head-on collision with the drunk occurs at 120mph relative velocity.

And flying formation, be it in space or in the air, by definition involves getting as close to zero relative velocity as possible . . . or else you aren't in formation.