Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year ...

Alien life could exist on hot, rocky planets, sustained not by water but by a type of salty fluid, new research suggests. Reading time 3 minutes The search for alien life usually hinges on finding the ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit.

Scientists may need to broaden their horizons in their search for alien life.

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with ...

Science fiction writer and futurist Arthur C. Clarke once said, “Two possibilities exist: either we are alone in the universe or we are not. Both are equally terrifying.” And perhaps that fear is what ...

A new study suggests a novel approach in the long-running scientific endeavor to find intelligent life beyond Earth. Instead of casting a wide, speculative net across the cosmos, researchers from Penn ...

New research from ETH Zurich challenges the long-held “follow the water” rule in the search for extraterrestrial life. Scientists argue that a planet’s habitability depends on a narrow chemical ...

High-energy particles zipping through the cosmos are harmful to life on Earth, but scientists think it could be food for potential alien life elsewhere. Saturn's moon Enceladus (shown here in a 2006 ...