New photos captured by NASA's Curiosity rover show that Mars' giant, spiderweb-like "boxwork" features are covered in tiny, never-before-seen nodules that bear a striking resemblance to arachnid eggs.

Some optimistic astronomers might still hope to find signs of aliens on Mars, but no one could have expected to discover something that sounds quite so delicious. Scientists have been baffled after ...

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very similar to classic river deltas on Earth. These are traces of rivers that ...

NASA’s Curiosity rover investigates boxwork rock formations on Mount Sharp to gather evidence of ancient groundwater on Mars.

Mars has a clear structure in its mantel, and its crust includes distinct reservoirs, scientists have said. Those are the findings from meteorites that originated 1.3 billion years ago on the red ...