Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

But now, they're planning to build telescopes on the far side of the Moon. These instruments will probe one of the last unexplored windows on the Universe. Here, astronomers hope to get a glimpse of ...

As number of lunar satellites soars, sites will be marked out where defunct hardware can be crash-landed ...

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...