The Alpha Centauri star system, located just four light-years from Earth, might host a giant planet in its habitable zone.

Planet could be a gas giant, orbiting 1 to 2 times the distance between Sun and Earth. The Alpha Centauri system, our nearest stellar neighbor, has long captured the imagination of science fiction and ...

Alpha Centauri, part of the three-star system closet to our own, is often posed in science fiction as humanity's first hop ...