Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

Tests conducted with tardigrades suggest that there is something in Martian dirt that dramatically reduces biological ...

Samples taken from an ancient Mars rock may indicate that ancient life once existed on the Red Planet, according to a study ...

"Life might actually survive being ejected from one planet and moving to another." ...

Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new ...

Scientists tested whether microbes can survive the shock of a planetary impact and found some may endure the violent launch into space.

Scientists may be one step closer in their hunt for signs of past life on Mars after the Curiosity rover's latest find.

A few weeks ago, the rover Perseverance found potential signs of life on Mars. Again. I’m getting tired of scientists getting so worked up about potential life on Mars. First, it was potential signs ...

A new study shows how simulated Mars dust affects tardigrades, offering insight into space farming and contamination risks.

“This finding by Perseverance …is the closest we have ever come to discovering life on Mars,” said acting NASA administrator Sean Duffy in a statement. “The identification of a potential biosignature ...