The site of the first Moon landing has been added to a list of endangered heritage sites over concerns that important ...

For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the Andromeda galaxy. Don't go looking for it -- the flickering star is 2.2 million ...

Proposed budget reductions for the Hubble Space Telescope would impact research and outreach as well as increase the risk to the observatory.

Stargazers have a treat this month with a good view of some of the planets that they will be able to see clearly after sunset ...

SpaceX has launched a pair of lunar landers for U.S. and Japanese companies looking to jumpstart business up there.