Water once existed in abundance of at the surface of Mars. How much of that water has been stored in the planet's crust is still unclear, according to a new analysis.

NASA’s Perseverance rover has uncovered high-purity quartz crystals on Mars, a discovery that could reshape the search for ...

Their work bolsters previous research suggesting that Mars once hosted large bodies of water and a potentially habitable environment. “We’re finding places on Mars that used to look like ...

Ferrihydrite forms quickly in the presence of cool water, meaning it must have formed on Mars when its surface still hosted lakes, rivers, and seas filled with water. That Mars rusted earlier than ...

The idea that Mars was once capable of holding liquid water is not new, and there are many bits of evidence pointing to this. This recent discovery, however, puts another piece of the puzzle in ...

Utopia Planitia dates to the Hesperian Period, or 3.7 billion to 3 billion years ago, and it lacks abundant evidence for standing water, unlike more ancient regions of Mars, said Aaron Cavosie ...

Mars' Red Hue New research challenges the long-held belief that Mars' red colour emerged under dry conditions. The study suggests that the planet’s signature hue is due to ferrihydrite, an iron oxide ...

Research suggests Mars's red hue may be due to ferrihydrite, an iron oxide formed in cool water, implying past habitability. Data from Mars missions and lab simulations support this theory, which NASA ...