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

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

Mars was once far wetter than it appears today, and new research suggests much of that water did not disappear but migrated beneath the surface. Evidence from deep crater basins points to a ...

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 ...

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

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

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 ...

Mars is known for its barren desert landscape and dry climate. But two recent studies in the journals Nature and Science go beneath the surface,... The core of Mars looks like Earth’s. What makes the ...

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 ...