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

Stockton Rush, 61, piloted the submersible, accompanied by British billionaire Hamish Harding, 58, Pakistani businessman Shahzada Dawood, 48, his son Suleman Dawood, 19, and French explorer and ...

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

A Clue That Water May Have Once Flowed There Mars, becoming a home for humans, is a hypothesis is one we've been trying for ...

Here’s a park that most Californians have never even heard of. Ahjumawi Lava Springs State Park is like finding buried ...

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 ...

It's a promising new blend of strategy and simulation from a god's-eye view.

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

As fascinating as bizarre signals from other planets can be—teaching us about earthquakes on Mars or auroras in the skies of Jupiter —sometimes even weirder signals come from weather extremes ...

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