The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible ...

Spotted thanks to a fleeting light distortion in 2011, a mysterious duo — a tiny star and its hefty companion — has turned ...

Scientists have unveiled an enormous gas cloud just 300 light-years from the solar system that measures about full 40 moons ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the ...

Astronomers have discovered that the magnetar SGR 0501+4516 is speeding through our galaxy at more than 110,000 mph. This ...