These are the weirdest comic book crossovers. You can do anything in comic books. Unlike other media, which require gigantic ...

Mars may have once possessed an ocean at least as large as Earth's Arctic Ocean, a new study suggests. Previous research ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...

Consciousness could be a fundamental part of reality, like gravity or matter, according to this controversial theory.

Paleoanthropologists have announced the world's most complete skeleton of Homo habilis, a human ancestor that lived more than ...

From Godzilla Minus One to Eternal Sunshine of the Spotless Mind, here are the best sci-fi movies from each year, between ...