2
votes
1answer
167 views

What if Felix Baumgartner went the other way?

How much harder would it have been for Felix to use some powered sled and head for the ISS when he stepped out of his capsule? He was already above most of the atmosphere. BTW, Is that capsule still ...
5
votes
1answer
90 views

What is the most convenient rocket engine to use exclusively in space?

I mean what parameters should a rocket engine that is used exclusively in space (last stage of a lunar rocket for instance) have?
5
votes
1answer
632 views

The most distant point from the earth that a space shuttle has reached

What is the most distant point from the Earth that a space shuttle has reached? When did this happen?