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.

A new study has provided compelling evidence that life from Mars could have arrived on Earth by hitching a ride on debris ejected during asteroid impacts. The research, led by scientists at Johns ...

Asteroid impacts are common across the solar system. Large craters cover many planets and moons, especially Mars. Scientists ...

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

For decades, scientists have imagined Martian life as something that might look faintly familiar, perhaps microbes not so different from those that once thrived in Earth’s ancient seas. A new wave of ...

TUSCON, Ariz. — Researchers working on the Phoenix Mars Mission say they've found evidence that liquid water exists on the red planet, though some mission scientists remain skeptical of the conclusion ...

Scientists have discovered traces of organic molecules on the Red Planet and are not ruling out the possibility that they were produced by living organisms.

Has there ever been life on Mars? Scientists have pondered this question for years, and a recent discovery suggests it just might be possible! NASA's Perseverance rover, which has been exploring Mars ...

NASA's Curiosity rover, which launched in 2011 from Florida, found signs of organic material that on Earth is most often produced by life.

Hardy bacteria in a lab survived pressures comparable to an asteroid strike on the red planet, suggesting a hypothetical scenario in which our planet was seeded with life.

Black swans entered the public vernacular in 2007 with the publication of Nassim Nicholas Taleb’s The Black Swan: The Impact of the Highly Improbable. Black swans are unexpected events, outliers ...