Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new Johns Hopkins University study finds. The work demonstrates that a certain ...

"For asteroids of the size scale relevant to planetary defense (i.e., ∼50-500 m), the mass can only be directly measured ...

The team picked an extremophile from the Chilean high desert that has the ability to survive some of the most inhospitable conditions on Earth: extreme cold, dryness, and intense radiation. These are ...

Hearty 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.