Mars may have once possessed an ocean at least as large as Earth's Arctic Ocean, a new study suggests. Previous research ...

NASA has launched the Mars to Table Challenge, seeking Earth-independent food systems capable of sustaining astronauts on ...

Mars is absolutely dripping with evidence that the red planet was once a striking blue, complete with glistening lakes, ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

Scientists haven't heard from the MAVEN orbiter since December 6. It had been studying the Martian atmosphere for over a ...

This doesn’t mean Mars causes ice ages on its own. Orbital cycles are only part of the picture. Earth’s oceans, atmosphere, ...

A recent photo from NASA's Curiosity rover gives an idea of what Mars would look like under skies that resemble our own on ...

Arcadia Planitia does not draw attention in the way Mars’s great canyons or volcanoes do. It sits quietly across the northern ...

Mars is a very dry planet with very little water in its atmosphere and hardly any clouds, so you might not expect it to have storms. Yet, there is lightning and thunder on Mars – although not with ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...