As Mars’ atmosphere continues to change, NASA activated a new instrument on Feb.25 to study how the Sun influences the planet and what drives space weather near Earth. NASA launched ESCAPADE, which ...

NASA’s ESCAPADE mission studies how solar wind removed Mars’ atmosphere, using twin spacecraft to measure atmospheric escape, magnetosphere changes, and space weather impacts.

Mars wasn’t always the cold desert we see today. There’s increasing evidence that water once flowed on the Red Planet’s surface, billions of years ago. And if there was water, there must also have ...

New research shows that an intense regional dust storm transported unusually high amounts of water vapor into Mars’ upper atmosphere, boosting hydrogen escape. The discovery reshapes understanding of ...

The single whistler event was recorded over a crustal magnetic field, at an altitude of 349 kilometers (217 miles) on the night side of Mars. This last part is crucial: When under the direct glare of ...

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its surface. So, ...

Mars' missing atmosphere may be locked up in the planet's clay-rich surface, a new study by MIT geologists has suggested. According to the researchers, ancient water trickling through Mars' rocks ...

CALGARY, Canada — Mars once breathed carbon in and out just like Earth does today. NASA’s Curiosity rover has uncovered evidence that the Red Planet had its own version of Earth’s carbon cycle, a ...

Billions of years ago, Mars is hypothesized to have been a much warmer and wetter planet featuring active volcanoes and vast liquid water oceans. However, something happened that caused the Red Planet ...

A new study may solve a central mystery of the planet’s 4.6-billion-year history. Despite increasing evidence that water flowed on Mars billions of years ago, scientists have been mystified by what ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for decades. Now, researchers think they have a good explanation for a warmer, ...

(NEW YORK) — Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its ...