Learn what could have been and might still be in space exploration.

The idea of human space exploration did not begin with the cold war.

He has written several books on the history of space exploration.

Space exploration and other things, he said, had changed for the better.

Space exploration would no longer be limited to just the young and the military.

And space exploration is the kind of thing governments do well.

And the public reaction had set back space exploration in the West five years.

He was later known for his coverage of space exploration.

There's no doubt the current economic situation is going to hold back space exploration for a while.

Can we use this information to our advantage for space exploration?