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

Giant flares blasted out of supermagnetized stars called "magnetars" could forge planets' worth of gold and other heavy ...

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 ...

"This measurement of the planet population from planets somewhat larger than Earth all the way to the size of Jupiter and ...

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