planet-discovered-next-door-to-our-solar-system-alpha-centauri-bbWritten by: William Atkins | Published in: Space

A planet has been discovered circling Alpha Centauri B, a star that is about 4.3 light-years away from Earth. Other than our Sun, Alpha Centauri B, along with two companions, is a member of the closest star system to us. This discovery is exciting to astronomers, and adds to the hundreds of planets already found orbiting stars.