Why Does Mars Have Such Wild Weather?

The Red Planet is full of natural phenomena that are somewhat bizarre, considering the fact that Mars' atmosphere is less than 1 percent as dense as Earth's. But why do these strange phenomena occur, sometimes far more violent than similar ones in the much thicker atmosphere on Ear... [ read more >> ]

A dust devil on Mars photographed by the Spirit rover on Sol 486 (the 486th day of the Martian year)

Image comment: A dust devil on Mars photographed by the Spirit rover on Sol 486 (the 486th day of the Martian year)
Image credits: NASA

A dust devil on Mars photographed by the Spirit rover on Sol 486 (the 486th day of the Martian year)