Last year, NASA’s Curiosity rover made a fascinating discovery after boring into a suspected ancient lake bed on Mars: ...

NASA’s Curiosity rover has assembled a string of chemical evidence from ancient Martian rocks that, taken together, builds ...

The key to solving the mystery of the Viking results is the discovery of perchlorate on the Martian surface in 2008.

We may have detected Martian life 50 years ago.

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

Scientists studying a rock sample collected by NASA’s Curiosity rover have uncovered something tantalizing: the largest ...

Organic compounds discovered on the Red Planet cannot be fully explained by non-biological sources, say astrobiologists.

This isn’t the famous sample reported last September, but another with different signs of past life we’re struggling to ...

A year ago, NASA announced that its Mars rover Curiosity had discovered long-chain organic compounds. Their quantity suggests ...