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) ...

A new planet has been discovered in our galactic neighborhood. A team of astronomers has found evidence of a third planet orbiting around the nearest star to our Solar System, Proxima Centauri. Due to ...