Astronomers used RR Lyrae stars to trace the early Milky Way, revealing a rapid formation of its halo and disk, with chemical ...

As a space scientist, every time I go outside with my family, I tell my children to look up at the sky. The front door of our ...

Astronomers can’t explain the bizarre light patterns on a far-away star — leaving some serious scientists thinking it might have to do with aliens. The unusual flickering around star KIC 8462852, ...

Explore the mystery of Tabby’s Star and the theory of alien megastructures causing its strange light patterns. About four years ago, one star gained notoriety when some astronomers suggested its weird ...

Mercury reaches its stationary point in Virgo today at 4 P.M. EDT. It will now begin moving westward, or retrograde, while also reducing its elongation from the Sun. The solar system’s smallest planet ...