Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth? A discovery ...

NASA's Curiosity rover has discovered carbonate-rich rocks on Mars, offering insights into the planet's past and possibly explaining why life has never been found there.

A new study has found thick layers of clay found on Mars could have provided the required mix of water, minerals and a calm environment for life to develop. Scientists from The University of Texas at ...