Bye-bye, Pluto! Hello, Alpha Centauri Bb! The universe just got a little more crowded with astronomers’ recent discovery of a new alien planet just outside of our solar system. Scorching hot Alpha Centauri Bb is about the same size as Earth and is a member of the three-star Alpha Centauri system, just 4.3 light years from us. It is possible that the zone can be habitable. However, it will be some time until space exploration of the latest addition to the universe can begin—new technologies must be developed first.