At just over four light years distant, Proxima Centauri is the closest star to the Sun in the entire Universe. We know it has one planet, called Proxima b, and there's decent evidence of a second, ...

Quick. What's the closest star after the sun? If you said Alpha Centauri you're one-third correct. Alpha is actually a triple system comprised of Rigil Kentaurus (Alpha Centauri A), Toliman (Alpha B) ...

Within a few dozen light years of the Sun, the sky is crowded with stars that could, in principle, host living worlds. I want ...

Astronomers have found evidence of a third planet around the closest star to the sun, reinforcing the idea that planets are common around the stars of the galaxy, even some of its smallest. And while ...

Ever since we found an exoplanet around the nearest star from Earth, there's been intense interest in whether it could host life. Today's news points in the opposite direction. Share on Facebook ...

A team of astronomers is hard at work analyzing an unusual radio signal detected early in 2019 by the Parkes telescope, a 64-meter radio dish in eastern Australia. The signal appears to have come from ...