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

It doesn't happen often that Mercury ranks as the planetary highlight of the evening sky, but July is an exception. The solar ...

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

Curiosity finds strange boxwork ridges on Mars that hint at ancient underground water. Scientists are now drilling for ...

The Mars rover found geological formations in Gale Crater showing how water percolated beneath the surface, and ...

New images from NASA's Curiosity Mars rover show the first close-up views of a region scientists had previously observed only ...

Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

Evidence is mounting that a secret lies beneath the dusty red plains of Mars, one that could redefine our view of the red planet: a vast reservoir of liquid water, locked deep in the crust. Mars is ...

We calculated the "aquifer layer" on Mars could hold enough water to cover the planet in a global ocean 520-780m deep - several times as much water as is held in Antarctica's ice sheet.

Their paper, titled "Ancient Ocean Coastal Deposits Imaged on Mars", details the discovery of multilayered, inclined sedimentary structures at depths of 10 to 35 meters beneath the surface.

A Wet Mars The Noachian period of Martian history from 4.1 to 3.7 billion years ago is the poster child for a wet Mars. There is abundant evidence from orbital images of valley networks and mineral ...