Scientists may have found a Neptune-sized alien moon

Astronomers have found an abundance of exoplanets, but no exomoons. Despite ongoing efforts, the tiny celestial bodies have just been too elusive to detect using modern technology. However, researchers might have just hit paydirt. They've used Kepler...

Scientists find the largest known planet to orbit two stars

The notion of planets in a Tatooine-like system with two or more stars isn't strange (they've been known since 1993), but a truly massive planet hasn't been seen before... until now. Scientists using NASA's Kepler space telescope have discovered Kep...