A scientist argued that a Viking lander experiment in 1976 detected microbial life on Mars and urged NASA to repeat the tests ...

Life on Earth might not be as Earthly as we think. A recent research published in The Conversation explores a revived and compelling theory: that the earliest forms of life could have originated on ...

A 3.5-billion-year old rock discovered on the Red Planet is "the closest we've come to discovering ancient life on Mars," according to NASA. Potential signs of microbial life were found in a rock ...

Over four years since it landed on Mars, NASA's Perseverance Rover might have made serious headway in its mission to find signs of ancient microbial life on the planet. Last July, the autonomous ...

We could be one step closer to proving alien existence. In 1996, a group of NASA scientists made a stunning announcement: The discovery of what appeared to be bacterial fossils on Mars. President Bill ...

The most enthralling rock yet found on Mars—a speckled hunk of mudstone that just may contain evidence of ancient alien life—is still worth getting excited about. The rock in question is packed with ...

A mudstone sample from Jezero Crater shows textures and minerals that on Earth often form through microbial activity. Scientists caution that nonbiological processes could also explain the features, ...

CAPE CANAVERAL, Fla. — NASA says a rock sample collected by its Perseverance Mars rover in the Jezero Crater may contain evidence of ancient microbial life on Mars. The rover discovered a rock ...

Billions of years ago, Mars’ Jezero Crater held a lake fed by rivers that could have carried minerals and maybe even organic matter. On Earth, places like that are teeming with microbial life. NOVA is ...

Scientists at NASA said Mars may have been able to support life and that the Mars Rover program has found rocks that may contain evidence of something living on the red planet. A new study published ...