The sweeping 940-page bill advances in the Senate, proposing major tax cuts, increased defense spending, and deep social ...

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.

A hidden box-lattice suggests groundwater sculpted Mars long after surface water fled; Curiosity’s drills aim to confirm the ...