If you have ever considered "purchasing" a star for the purpose if attaching your name or the name of a friend or relative to it, the following tale is for you.

A weirdly wonderful sight appeared to astronauts aboard the International Space Station this summer -- thin blue clouds hovering at the boundary between Earth's atmosphere and the void.

The public is invited to come and see the expertise, technology and challenges associated with space exploration when NASA's Goddard Space Flight Center holds its Launchfest open house Saturday, Sept. 13, 2008. Learn about exciting new missions as NASA G

After nearly a year rolling around inside an expansive crater on Mars, NASA's trusty rover Opportunity is headed back out to explore the Martian plains.

The tick-tock of your biological clock may have just gotten a little louder. The number of genes under control of the biological clock in a much-studied model organism is dramatically higher than previously reported. The new study implies that the clock m