The predawn hours of April 28 will see a planetary triangle form in the night sky, as Venus makes a close approach to Saturn following a conjunction, while Neptune, invisible to the naked eye, will ...

Often referred to as "the gift that keeps giving," the HST has provided not just magnificent science — shared worldwide — but also some of our universe's most significant and ...

April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

A reddish star is about to pass through a "beehive" of stars. That "star" is actually one of Earth's planetary neighbors.