Read about the companies selected by NASA to advance knowledge supporting life and work in the lunar environment.

NASA Administrator Bill Nelson stepped down on Monday, Jan. 20, after President Donald Trump was inaugurated, and the ...

For a few months, Earth had a second moon — a tiny asteroid that may have been a piece of our own Moon ...

While claims of a “rare alignment” are overblown, you can still see up to six planets in the night sky this weekend. Here's how.