The microbe was gathered from the agency's clean rooms, where experts build spacecraft in carefully controlled environments.

While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of looks like a giant reptile had shed its skin across the planet’s surface.

NASA's Curiosity rover uncovered critical new samples, including a series of compounds planetary scientists consider building blocks for the origin of life on Earth ...

The United States is stepping back from the most direct test yet of possible alien biology on Mars just as new telescopes and probes are racing ahead to hunt for life light‑years away. Lawmakers have ...

A rendering of the mid-air deployment of one of the SkyFall copters. (NASA Jet Propulsion Laboratory/AeroVironment, Inc.) ...

NASA's Curiosity rover has found DNA-like molecules and space-rock chemicals on Mars, proving the Red Planet could have preserved ancient signs of alien life ...

NASA’s Psyche spacecraft is using a daring close flyby of Mars to slingshot toward one of the solar system’s strangest ...