Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

NASA’s Perseverance and Curiosity rovers are uncovering some very strange rocks on the Martian surface. From "zebra stripes" ...

Is there life on Mars? When curiosity breaks through a rock, it reveals this within. Sulfur crystals were discovered on the ...

Did hot water once flow on Mars? Perseverance rover has collected rock samples from the Jezero Crater that are rich in silica ...

The Perseverance rover has found some intriguing samples on the red planet. Here's what they might reveal about the origins of life in our universe—if we can get them back to Earth.

Dogs have evolved to communicate emotions through body language as well as bark, especially with their tails. A wagging tail can signal happiness, but its speed, position, and direction add deeper ...

While the NASA apparatus perched on Mars was rolling over the planet ... "Finding a field of pure sulfur rocks is like finding an oasis in the desert. It shouldn't be there, so now we have ...

The Curiosity rover detected the largest organic molecules to date on Mars, which may be fragments of fatty acids, or some of ...

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed ...

NASA’s Curiosity rover has uncovered intriguing traces of sulfur crystals embedded in Martian rock formations, adding weight to the theory that ancient Mars may have supported microbial life. The ...

For more than a decade, a robotic explorer has been traveling across Mars, quietly collecting clues about a time when the Red ...