Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

Mercury, the first planet from the sun, is about to be really easy to spot for a short snippet of time in the night sky next ...

In fact, we strongly encourage you to use Venus as your landmark to locate Mercury. And on March 1, another celestial object will help point the way to this rocky little planet: the moon.

Diminutive Barnards Star is closer in size to Jupiter than to the Sun. Only the three stars that make up the Alpha Centauri ...

NASA and SpaceX are postponing a mission to swap astronauts stuck on the ISS due to rocket issues. Also, NASA must soon ...

In fact, we strongly encourage you to use Venus as your landmark to locate Mercury. And on March 1, another celestial object will help point the way to this rocky little planet: the moon. Currently, ...

WASHINGTON, March 13 (Reuters) - Astronomers have identified a quartet of small rocky planets orbiting ... much like our solar system's innermost planet Mercury. At about 6 light years away ...