NASA's Curiosity Rover has discovered long carbon chains on Mars. On Earth, molecules like these are overwhelmingly produced ...

The stardust, formed five to seven billion years ago, came from a meteorite that fell to Earth 50 years ago in Australia, they said in a paper published in the journal PNAS. It came down in 1969 ...

Water from both volcanic rocks and deep mantle melted Earth's crust 1.6 billion years ago. This long-lasting melting formed ...

A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.

Scientists discovered complex life may have started 1.5 billion years earlier than previously thought thanks to phosphorus.

The study also provides a new approach to solving one of the biggest enduring scientific mysteries: when did plate tectonics begin?

"The fact that fragile linear molecules are still present at Mars' surface 3.7 billion years after their ... If life ever appeared on Mars billions of years ago, at the time life appeared on ...