Dubbed "araneiform terrain," the Mars surface formations span over a half-mile long and have hundreds of branches that ...

Unlike the other planets in the solar system, Mars is distinctly triaxial, meaning it is an ellipsoid with different sizes ...

Robotic Martians can see blue Earth in Mars' sky. The Curiosity rover, a car-sized NASA robot looking to find evidence of ...

The image above shows a striking cloud pattern sculpted by gravity waves, which are common ripples in both Mars' and Earth's ...

Newly released images of Mars reveal a "smiley" salt deposit on the Red Planet's surface. A related study suggests that ...

"These dense structures could be volcanic in origin or could be compacted material due to ancient impacts," a researcher said ...

New simulations suggest that there are enough primordial black holes—potential dark matter candidates—in the universe for one ...

The European Space Agency has found a “smiley” face on the surface of Mars — and the joy-sparking pattern could be a sign of ...

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China’s historic attempt to bring samples from Mars to Earth could launch as soon as 2028, two years earlier than previously ...

A Mars scientist shares the inside story of the NASA Curiosity rover's poignant first photo of Earth and Mars moon Phobos ...

"Primordial black holes do not live in the solar system. Rather, they're streaming through the universe, doing their own thing," said researcher Sarah Geller.