Mars isn’t just dusty—it crackles with electricity. Scientists discovered that dust devils can generate tiny electric sparks, ...

Mars, often depicted as a barren red planet, is far from lifeless. With its thin atmosphere and dusty surface, it is an ...

Artist's rendering of a solar storm hitting Mars and stripping ions from the planet's upper atmosphere. Mars' atmosphere, once as thick as if not thicker than Earth's today, is leaking into space. "We ...

Scientists believe Mars once looked very different from the cold, dry world it is today, and MAVEN was launched to investigate how the planet lost its atmosphere.

Mars used to look a lot like Earth, scientists suspect. But something happened 3.7 billion years ago that severely changed the Red Planet's climate and, over time, left the surface dry, desolate, and ...

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 ...

When Mars lost its atmosphere billions of years ago, it transformed from a planet that could have supported life into a cold desert world. But exactly what happened to the thick air that once ...

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Nasa’s Curiosity Rover has already found evidence of dried up lake, rivers, pebbles and minerals which suggests there was once a dense enough atmosphere for water to run freely on Mars. But most of ...

A key tracer used to estimate how much atmosphere Mars lost can change depending on the time of day and the surface temperature on the Red Planet, according to new observations by NASA-funded ...

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