A Planet That Might Have Been Like Earth Billions of years ago, Mars wasn’t the desolate planet we know today. Scientists believe it once had a thick atmosphere filled with carbon dioxide, enough to ...

Such discoveries suggest water once flowed beneath Mars' surface. On Earth, sulfate minerals can preserve microscopic fossils of microbes. Finding similar structures on Mars could indicate past life.

Researchers bombarded lichens with a year's worth of Martian radiation in just 5 hours — and they survived, hinting that the extremophiles could potentially live on the Red Planet.

X-ray radiation levels in the chamber were similar to those on the surface of Mars when there is strong solar activity, although solar flares and fluctuations in solar wind make actual Martian ...

The footprints indicate Mars once experienced multiple periods of mineral formation – each suggesting different environmental conditions beneath the surface. According to lead author Michael Jones, an ...

Researchers have long believed that Mars had a dense, carbon dioxide-rich atmosphere and liquid water on its surface. This carbon dioxide and water were expected to react with surface rocks to form ...

Now NASA may have helped find it thanks to a signs of a carbon cycle beneath Mars’ dusty surface. It’s hard to prove that life was once on Mars, so scientists focus on analysing its rocks and ...

A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence of the planet’s warmer and wetter ancient past when it boasted substantial ...

A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence of the planet's warmer and wetter ancient past when it boasted ...

The discovery has fueled speculation about the possibility of past or present extraterrestrial life beneath Mars' surface. While NASA continues to manage expectations, stressing that microbial ...