A throwaway line about Vulcan sparked decades of debate, until one clever theory finally made it official canon.

Scientists reveal how waves behave on alien planets, from towering methane seas on Titan to nearly still lava oceans on ...

Steven Spielberg’s 2005 sci-fi alien film is arriving on Hulu very soon. Here are all the details on the film and its release ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

Stargate SG-1 Series - Movie Clip - Kneel Before Your Queen Amazon - Set after the events of the Stargate (1994) movie, the ...

Set on a partially terraformed world, this video contrasts human-controlled ecosystems with regions where alien life still ...