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 ...

Yet another tantalizing clue. The post NASA Running Out of Non-Life Explanations for What Its Rover Found on Mars appeared ...

Ancient Mars is coming into sharper focus as a planet laced with rivers, deltas and vast drainage basins, and that new map of its watery past is rapidly reshaping where scientists intend to look for ...

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

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 ...

NASA’s Curiosity rover has assembled a string of chemical evidence from ancient Martian rocks that, taken together, builds the strongest circumstantial case yet for conditions that could have ...

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

The discovery of the molecules was made with Nasa’s Curiosity rover, which examined a Martian rock named Cumberland. This is ...