Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

These are missions only NASA can lead. Everything else should go to partners who can deliver faster and cheaper.

A pull in the right direction ...

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

Mars, often depicted as a barren red planet, is far from lifeless. With its thin atmosphere and dusty surface, it is an energetic and electrically charged environment where dust storms and dust devils ...

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

MAVEN was built to last in orbit until 2030 — that's not looking likely anymore.

Scientists have traced ancient Martian shorelines inside a giant canyon, revealing where a vast ocean once stood and why ...

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

Ancient shoreline features hint that water on Mars once formed a vast ocean.