Mars

A scientist's quest for mysterious sources of underground oxygen may offer clues about the origins of life.

Recent research suggests that our planetary neighbor causes a stir deep under the ocean.

Well-preserved ancient plants and other finds at the Clarkia fossil beds hint at what kind of evidence any Martian life may have left behind.

If the past is any guide, things are going to take off quickly.

From Mary Roach’s hilarious look at space travel to astronaut Scott Kelly’s photos documenting a year off planet.

What started as a late-night chat transformed into millions of dollars of funding for a Mars lander.

Often associated with Earth’s hottest places, these whirling columns show up on all seven continents—and beyond.

“We’re going to do so many cool things.”

Thanks, in part, to 150 tons of soil belched out by Mount Vesuvius nearly 2,000 years ago.

The mineral mirabilite is the key.

Dallol can teach us a lot about Mars, and it needs to be protected.

Some scientists believe this is how we'll know what to look for.

A familiar sight, millions of miles away.

A new NASA robot is braving extreme temperatures to learn about the Red Planet.

Spicier alternative titles for some of our stories.

When the red planet comes close to Earth, some people have tried to tune in to see if it has anything to say.