Mars wasn't always frozen and barren. Billions of years ago it had flowing rivers, standing lakes, and possibly oceans. It ...

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Over more than a decade at Mars, the orbiter revealed how the solar wind strips away the planet’s atmosphere — and why the world lost its water.

Add Yahoo as a preferred source to see more of our stories on Google. MAVEN data shows Mars can redirect plasma inside its ionosphere during solar storms, revealing a new space weather effect. (CREDIT ...

The thin air of Mars has long been treated as a problem to be solved, a hostile mix of carbon dioxide and dust that stands between human explorers and long-term settlement. A growing body of research ...

It's not entirely clear how neighboring planet Mars went from a presumably life-supporting planet to a place as dead as all others in the solar system. We do know, however, that whatever water and ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Mars' missing atmosphere may be locked up in the planet's clay-rich ...

Making Mars Earthlike is not impossible in principle, but the scale of mass, heat, oxygen, and energy required makes it far beyond current capability.

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 ...

For years, scientists have puzzled over how Mars lost the thick atmosphere it once had. That atmosphere was essential for liquid water to exist on the planet's surface, billions of years ago. Today, ...

New research suggests Mars' missing atmosphere -- which dramatically diminished 3.5 billion years ago -- could be locked in the planet's clay-covered crust. Water on Mars could have set off a chain ...

The dream of humans living on Mars has existed for decades, and in recent years it has moved closer to serious scientific and engineering conversation than ever before. But a new study published in ...