1.  The visits are intended to facilitate cooperation between the two former Cold War rivals in future space exploration activities.

2.  Another reason for learning more about comets, he said, is that they could be a source of raw materials for future space exploration.

3.  A solid performance should make Collins eligible to command a future space mission, something a woman has never done.

4.  A supply of water on the lunar surface could make it much more attractive as a base for future space exploration.

5.  All three astronauts briefly toured their future space home last May as part of the third shuttle crew to visit the station on a supply flight.

6.  But like almost every American, he has seen numerous television reruns of the historic event and has given some thought to future space exploration.

7.  He would claim the asteroids and comets as private property, then mine them and sell the resources to future space colonists.

8.  Instead it recounts the nightmare of the space shuttle explosion and the Hubble telescope fiasco, and casts future space missions in severe shadows.

9.  Most of the additions in the budget went to the aeronautics programs, sources said, mostly to future space launch technologies.

10.  NASA and the University of Wisconsin, Madison, created the technology with the goal of feeding astronauts on long space voyages and eventually feeding future space colonies.