NASA’s Curiosity rover has captured an image of a mysterious shiny cylinder, sparking widespread curiosity and debate among ...

There's more evidence that water once flowed on Mars with the discovery of an ancient river delta deep below the surface.

An accident on Mars revealed the surprising contents of an otherwise unremarkable rock. (NASA/JPL-Caltech/MSSS) A rock on ...

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

Water is considered the basic building block for life as we know it. An extended water history on Mars widens the window of ...

Researchers studying Mars uncovered something unusual hiding inside ancient Martian rocks: a new form of matter ...

A routine drive by NASA’s Curiosity rover accidentally cracked open a Martian rock, revealing rare yellow sulfur crystals.