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

NASA's Perseverance rover discovered rocks on Mars, providing new evidence the red planet was once a wet, habitable world ...

Mars has long been cast as a frozen desert, a world of dust and stone that lost its water eons ago. Fresh evidence from a cluster of pale, “bleached” rocks now suggests that picture is far too bleak, ...

Mars may have been much warmer and wetter billions of years ago than previously thought, according to new findings from ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The Perseverance rover ...

Light-colored rocks scattered across Mars have become a quiet clue to a louder story about the planet’s past. NASA’s Perseverance rover keeps finding pale pebbles, cobbles and even small boulders ...

Rocks found on Mars may provide the strongest evidence yet of past life on the Red Planet, but more testing is needed to back up those findings. Until the samples are retrieved by robotic spacecraft ...

Scientists believe these rocks were formed by ancient rainfall, similar to how they form in tropical climates on Earth. The discovery adds to the evidence that Mars may have once been a habitable ...

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

A new study of carbon-based molecules in a Martian rock offers new hints about the possibility that the red planet once ...