A six-wheeled robot wandering the rugged terrain of Mars recently came across two small tornadoes whipping around the planet's surface. In a short video released Thursday by NASA, the two dust devils ...

When Spirit dropped through the thin Martian air and bounced to a stop inside Gusev Crater, it did more than survive a ...

"If two dust devils happen upon each other, they can either obliterate one another or merge, with the stronger one consuming the weaker." When you purchase through links on our site, we may earn an ...

This large dust devil in the center consumed a smaller nearby dust devil on Mars in January. Future human visitors to Mars will have to deal with an unfriendly planet. It’s dusty. It’s windy.