If you examine our solar system’s giant planets, you’ll notice right away that they’ve all got moons—a lot of moons. While ...

Recent research has uncovered a surprising twist in the search for extraterrestrial life: cosmic rays, typically seen as hazardous to life, may actually support alien life on cold, dark moons in our ...

We’ve discovered thousands of exoplanets — but not a single confirmed exomoon. That doesn’t mean they aren’t out there. In ...

When we imagine alien life in books or on TV, we often think of planets like ours inhabited by extraterrestrial people. The Harry Vanderspeigle’s (Alan Tudyk) of the universe are basically human with ...

A new finding of ammonia on the icy surface of Jupiter's moon Europa could have important implications for the search for extraterrestrial life. When you purchase through links on our site, we may ...

A Space: 1999-ish shuttle lands on an under-construction moonbase, where scientists have just found a secret hatch containing… something alien, in this trailer from Moon, a new game coming soon for ...

For the first time, scientists have directly detected molecules in a Frisbee of gas and dust swirling around an alien gas-giant planet. “I didn’t think this was possible,” says astronomer Sierra Grant ...