NASA's Curiosity Mars rover took this selfie at a location nicknamed "Mary Anning" after a 19th century English paleontologist. This was the site of the chemical experiment uncove

Scientists think they are looking at chemical building blocks of life preserved for 3.5bn years

Scientists believe they found fresh proof of an ancient ocean on Mars in the form of a “bathtub ring” it left after it dried up billions of years ago.

NASA's Curiosity rover has identified more organic compounds on Mars as scientists strive to learn whether the Red Planet ever harboured life. Five of the seven diverse organic compounds, which were confirmed in an experiment by the six-wheeled rover in rock that formed in a dried lakebed near the planet's equator,

The findings reveal that the Martian surface can preserve the kinds of molecules that could serve as signs of ancient life.

NASA's Curiosity Mars rover has uncovered a diverse mix of organic molecules on Mars, including chemicals widely considered building blocks for the origin of life on Earth.

Mars has long puzzled scientists. Dry riverbeds, mineral traces, and layered rocks hint at a wetter past. For decades, experts have searched for clear proof of an ancient ocean. Shorelines seemed like the obvious answer.

A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the Red Planet.

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the extent to which Mars is quietly tugging on Earth's orbit and shaping the cycles that drive long-term climate patterns here ...

Ancient ripple layers on Mars capture a single sandstorm, helping scientists estimate how dense the planet’s atmosphere once was.

Add Yahoo as a preferred source to see more of our stories on Google. Physicists have worked out exactly how fast time passes on Mars compared with Earth. (CREDIT: Wikimedia / CC BY-SA 4.0) On Earth, knowing the time feels simple. Your phone pings the same ...