While Mars today only has a wispy remnant of an atmosphere, it may once have had one hundreds of times thicker with a ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology experiments.

As the Perseverance rover traversed an ancient river valley in Mars' Jezero Crater back in July 2024, it drilled into the surface and extracted a sample from a unique, striped rock called Cheyava ...

A new study in the journal Nature detailing chemicals found in rocks on the surface of Mars could be among the strongest evidence for life having been on the surface.

Air Force Maj. Ross Elder will lead a 378-day NASA mission with three other crew members in a structure that simulates a base ...

NASA published tantalizing evidence that the red planet once harbored life. But Trump’s proposed budget could leave the ...

Mars’ Jezero Crater holds signs of ancient water and strange mineral reactions, some linked with organic compounds. With ...

Beneath the surface of Mars lie an array of mysterious "blobs" that might hold clues about the earliest days of our solar system.

Billions of years ago, Mars may not have been the frozen desert we see today. New simulations suggest that volcanic eruptions pumped out reactive sulfur gases, creating greenhouse effects strong ...

Has NASA's Perseverance rover at long last found evidence that life did indeed once exist on Mars? Here's what we know.

HOUSTON—NASA has selected four crewmembers for its second 378-day simulation of living and working on the surface of Mars.

Potential signs of microbial life were found in a rock sample collected by the rover in 2024 from an ancient dry riverbed on ...