Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

Samples taken from an ancient Mars rock may indicate that ancient life once existed on the Red Planet, according to a study ...

A new NASA analysis concludes that it is "reasonable to hypothesize" that living things could have formed the odd organic ...

Learn about geologic formation on Mars that resemble spiderwebs, serving as records of ancient groundwater flow on the planet ...

Mars is starting to look less like a dead world and more like a planet that once had the right pockets for life to take hold. The latest focus is on enormous caverns apparently carved by flowing water ...

For decades, the search for life on Mars has been a story of hints and maybes, of chemical curiosities that stopped just short of a clear biological signal. That changed this year when a single, ...

Mars’ frozen ice caps may be time capsules for ancient life. Lab experiments show that key building blocks of proteins can survive tens of millions of years in pure ice, even under relentless cosmic ...

Long before Mars turned into the frozen desert you see today, water shaped its surface in dramatic ways. Rivers cut through highlands, lakes pooled inside craters, and floods tore open canyon walls.

“This finding by Perseverance …is the closest we have ever come to discovering life on Mars,” said acting NASA administrator Sean Duffy in a statement. “The identification of a potential biosignature ...

NASA finds carbon molecules in ancient Martian lake, and scientists admit it is difficult to explain them without life.

If life ever existed on Mars, it might have looked like microfossils right here on Earth.