Imagine exploring oceans filled with alien predators or skies where life never touches the ground. Using real evolutionary principles, this speculative guide explores how life might develop on worlds ...

Between biosignatures and technosignatures lie noosignatures, and some scientists think they could help us find alien life ...

A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home planet.

A 1989 investigation by George Knapp explored how various religious perspectives, including Catholicism, Judaism, Mormonism, ...

NASA’s Curiosity rover has once again found itself at the center of an extraordinary alien theory after a resurfaced image ...

If you were hoping we’d find alien life hanging out on a cozy, pint-sized planet anytime soon, then you should know that ...

R L Drake explores the Fermi Paradox: why, given the Milky Way's billions of potentially habitable planets and the Drake Equation's estimate of 12,500 possible ...

LOS ANGELES (AP) — In “Disclosure Day,” out Friday, Steven Spielberg is once again inviting audiences to ponder the existence of extraterrestrial life — and the implications it would have for religion ...