“Sulphate minerals exist with different amounts of water in most regions ... the internal chemistry of Mars rocks. Diffraction mapping uses patterns to create maps of the properties of material ...

This image was captured by the Mars Reconnaissance Orbiter, which has spent the last two decades looking for signs that ancient water flowed on Mars from orbit. On the ground, Curiosity has been ...

Though it is covered in a layer of dust, scientists are learning that Mars is home to deep ice deposits outside of its poles. The presence of water is an important factor for researchers as they ...