NASA's Curiosity rover has found iron-rich carbonates on Mars — a major clue that the Red Planet used to be habitable.

Mars may have hosted life billions of years ago, a possibility that has long intrigued scientists. Now, new evidence suggests ...

Large carbon reserves that were trapped inside carbonate minerals were discovered by the robot, suggesting that Mars was once warmer and perhaps habitable ... and orbital maps, scientists now ...

It’s one of the most profound questions in science – did life ever exist on Mars? Now, experts have unearthed evidence that the Red Planet was once habitable. Scientists have found carbon ...

NASA's Curiosity rover has found iron-rich carbonates on Mars, offering new clues about ... "It tells us that the planet was habitable and that the models for habitability are correct," said ...