NASA's Curiosity rover has captured the first close-up images of a part of Mars that scientists say provide evidence of how water once flowed on the red planet. There were once rivers, lakes and ...

Strange spiderweb-like ridges on Mars may reveal groundwater lasted longer than scientists thought.

NASA's Curiosity rover just found bizarre nodules on giant Martian "spiderwebs." Scientists are puzzled.

The European Space Agency (ESA) has shared stunning images of the foot of Mars' giant volcano, Olympus Mons, which stands at an impressive 27 km high and has a base over 600 km wide, making it the ...

NASA's Curiosity Mars rover has taken the first ever close-up images of gigantic Martian "spiderwebs" on the Red Planet. The zig-zagging ridges, which were left behind by ancient groundwater, could ...

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There might’ve been life on Mars after all. Although it resembles a coral typically found at the bottom of the ocean, it was a piece of rock that a NASA spacecraft — Curiosity rover — recently ...

Silica sinter (an amorphous form of silicon dioxide) forms from the waters that flow from hot springs near Shoshone Lake in Yellowstone National Park. (Photo courtesy of Jake Lowenstern/USGS) Today, ...