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

Mars is thought to currently have all the necessary ingredients for life except for perhaps the most important one: liquid ...

By discovering carbonate rocks, NASA's Mars rovers may have unlocked the key to understanding the fate of the Red Planet's climate.

One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were ...