We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red? The classic joke explanation ...

Now, a new study suggests that the red dust covering Mars is dominated by a mineral called ferrihydrite, a poorly crystalline ...

A new study claims that a mineral found in Mars' dust called ferrihydrite, which forms in the presence of cool water, is likely what gives the planet its reddish hue.

A recent international study reveals that the Mars' iconic red hue is likely due to the iron mineral ferrihydrite, which requires water to form. This suggests Mars had a wetter, more habitable past.