Terraforming Mars might sound far-fetched, but researchers argue in a new study that we should take the idea seriously.

SpaceX and Tesla CEO Elon Musk outlined his plans to make life multi-planetary by sending Earthlings to Mars. The scale of ...

NEW YORK (AP) — Northern lights may be visible in parts of the U.S. Monday night following weekend solar storms.

Astronomers reported Monday that the probability of the two spiral galaxies colliding is less than previously thought, with a ...