The so-called Candor Tetrahedron. (NASA/JPL-Caltech/UArizona) It would be tempting to assume there's nothing much of note ...

A strange formation spotted deep within a massive Martian canyon is once again fueling debate over whether something more ...

NASA Rover Studies Unusual Structures on Mars That Have Scientists Puzzled ...

NASA photos appear to show a pyramid-like structure the same size as Giza on Mars, prompting speculation about whether an ...

The structure is reportedly located in the western region of Candor Chasma, one of the largest valleys on Mars.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. NASA has released two new ...

Scientists have long thought there are a series of pyramid-like structures on Mars, with recent images showing one that could ...

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 ...

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

NASA has released two new images of spiderweb-like "boxwork" structures captured by the Curiosity rover on the surface of Mars. One of these photos (encircled) shows tiny, never-before-seen nodules ...