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

Roughly 3.5 billion years ago, Gale Crater on Mars held a lake. The sediments that settled at its bottom have been locked in stone ever since, baked by radiation and scoured by thin, cold wind. This ...

WASHINGTON — A NASA rover drilling into Martian rock has turned up the biggest and most varied batch of carbon-based molecules ever found on Mars — including some that, on Earth, are considered key ...

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