Astronomers discovered a moon-like object orbiting a brown dwarf that's orbiting a star. Say that three times fast.

We’ve discovered thousands of exoplanets — but not a single confirmed exomoon. That doesn’t mean they aren’t out there. In fact, moons may be even more common than planets — and in some cases, even ...

HIDDEN alien moons that could harbour life can be revealed by the wobbles of their planets. Almost all the 30 known exoplanets that sit within the habitable zone of their stars are gas giants. “But ...

A team of U.S. and U.K. researchers has outlined a new way to detectalien moons by tracking subtle flashes of reflected light during lunar eclipses in distant planetary systems. The method, designed ...