Perseverance cracked open a tricky Mars rock to find water-related minerals, then zoomed across the landscape to make its ...

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

The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting ...

New research shows how Mars may have undone its own habitability, while Earth stayed stable enough to support life.

As the sun grew hotter, so did Mars, prompting much of its atmospheric carbon dioxide to rain out and ultimately get locked ...