I don't believe in aliens like the little green men from sci-fi movies, but scientists think a newly discovered planet could support life.
The Earth-sized Proxima b orbits the nearest star outside our Solar System. It lies in the 'habitable zone' not too close and not too far from its sun, giving it an environment similar to Earth's. Scientists think it has a good chance of having liquid water - key to all the life we know of.
The next step is to get a clear image of the planet, to help scientists work out if it really could be home to alien life.