Two different teams of scientists made Martian discoveries this week, revealing a little more about our mysterious planetary neighbor. Related video above: NASA reveals image of Tarantula Nebula captured by the James Webb Space Telescope Scientists say they’ve discovered why Mars is red With its iconic rusty hue,

Mars’s red dust may contain ferrihydrite, an iron mineral that forms in water. This suggests ancient Mars had water for longer than believed.

A new study led by Brown University researchers shows how a water-rich mineral could explain the planet’s color, hinting at a wetter, more habitable past on the Red Planet.