Happy 40th anniversary, Apollo 15!

This month is the 40th anniversary of the Apollo 15 launch. This mission was the eighth manned mission in the Apollo program and the fourth to the Moon. The Apollo 15 mission is important because it was another step in manned ...

Why space shuttle fleet is retiring, what's next

As the space shuttle program winds down, questions are flying about what's happening and why. The launch countdown began Friday for the second-to-last flight. Some answers about the end of the space shuttle:

Mars explorers will include women, experts say

Men walked on the Moon, but women will be among the pioneering explorers who someday step foot on Mars, said a gathering of top female space experts this week.

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