The closest known exoplanet is currently called Alpha Centauri Bb, but the folks behind Uwingu want you to come up with a cooler name. "It might be Pandora. Who knows?" said planetary scientist Alan ...

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 rocks ...

Alpha Centauri, one of the two "Pointer Stars" that help stargazers find the Southern Cross in the Southern Hemisphere, may have a planet in orbit around it. If it does, the Webb Telescope will find ...