But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

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 ...

Obama replied “They’re real, but I haven’t seen them, and they’re not being kept in … what is it …?” “Area 51?” the interviewer responded. Then Obama said, “Area 51. There’s no underground facility.

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

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 ...

:rocket: Could aliens be hiding on a frozen twin of Earth? NASA has just discovered a rocky exoplanet that’s remarkably similar to our home planet — and it’s shaking up the search for alien life.

There might be many more planets that could be home to aliens than we thought, according to a new study. For years, scientists have searched for life in the “habitable” or “goldilocks” zone – where it ...

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.

Is water enough to find alien life? New research reveals phosphorus and nitrogen are crucial. Discover the 'chemical ...

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 ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. In the late 1800s Italian astronomer Giovanni Schiaparelli pointed a telescope at Mars ...