Xpeople, on 21 October 2012 - 08:23 AM, said:
I wonder if they try this from the ISS.
Jumping from orbit would be a whole different ball game.
Firstly, if you just stepped out of the air lock you wouldn't fall, you just remain in orbit with the ISS, so you would need to take some sort of retro-rocket to slow you down enough so that you dropped out of orbit.
The next problem is speed, from orbit you would hit the top of the atmosphere at over 17,000 mph. Lots of thing do this, they are called meteors. So you would also need to take some sort of heat shield other wise you would just burn up.
People have suggested jumping from orbit before, even suggesting it as a way to return from a spacecraft left marooned in orbit, but it would be far more difficult and dangerous than even Baumgartner's amazing jump.