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

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

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

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

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

Unlike the other planets in the solar system, Mars is distinctly triaxial, meaning it is an ellipsoid with different sizes along all three axes. A long-lost moon could explain why Mars is so ...

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Elon Musk revealed that SpaceX plans to launch missions to Mars and is inviting volunteers prepared for a hazardous and ...

Watching for changes in Mars' orbit over time could be new way to detect passing dark matter, according to researchers.

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 ...