Astronomers detected the alien planet around the sunlike star Alpha Centauri B, which is part of a three-star system just 4.3 light-years away from us. The newfound world is about as massive as Earth, but it's no Earth twin; its heat-blasted surface may be covered with molten rock, researchers said.
Chances are that no one alive today will ever travel to Alpha Centauri B b, the boiling-hot, Earth-scale planet detected a mere 4.37 light-years away, but that doesn't mean we have to put off planning for the trip. Even though this particular planet isn't habitable, there might well be more than one reason to take a close look at the star system.