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 ...

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 ...

Given it is not always common to see so many planets together in the night sky, planetary parades in alignment make for a unique event, according to NASA. Mercury has a rocky surface when ...

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.

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 ...