UPDATE for 11 am ET: NASA's Perseverance rover has discovered sediment formations that could be signs of possible biosignatures on Mars, but they could also have a non-biological source. Read our ...

Researchers simulated Martian permafrost and ice cap conditions in a laboratory, exposing *Escherichia coli* samples in pure water ice and water-sediment mixtures to cosmic radiation equivalent to 50 ...

Right now there is no conclusive evidence of life on Mars past or present. Nasa’s “leopard spots” are the most promising ...

Recent experiments have unveiled the remarkable resilience of an Earth bacterium that survived the extreme conditions of a ...

A NASA study shows bacteria fragments can survive 50 million years in Martian ice. Pure ice, not rock, could hold clues to ...

CAPE CANAVERAL, Fla. (AP) — NASA’s Mars rover Perseverance has uncovered rocks in a dry river channel that may hold potential signs of ancient microscopic life, scientists reported Wednesday. They ...

Mars is where that leadership will be proven. And if NASA is serious about sending humans there, and keeping them safe while they’re there, that investment in long-term infrastructure needs to start ...

Astronauts train to scale a Mars volcano at an analogue site in France. Lava tubes that crisscross the Martian surface might provide sanctuaries for the first human explorers on the Red Planet. (Photo ...