But the universe is more interconnected than we once thought. Alpha Centauri, the nearest star system to our own, has always intrigued astronomers. Consisting of three stars—Alpha Centauri A ...

Though it appears as a single bright speck in the sky, Alpha Centauri is actually a triple star system, with several suspected exoplanets, including a super-Earth called Proxima Centauri b ...

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray ...

is home to three stars, one of which is so tantalizingly similar to our sun that many experts speculate that its solar system might contain habitable planets. But Alpha Centauri is about 4.3 light ...

Researchers estimate over a million interstellar objects from Alpha Centauri may already be lurking in the icy shell surrounding our solar system. Stars don’t hoard their material—Gregg and ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star, one of our closest stellar neighbours.