"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

Something weird is happening on Mars. What scientists believed was a totally dead, frozen world may actually be hiding a vast underground reservoir of liquid water. The discovery rewrites decades of ...

It’s a virtual mission to Mars. Our first mission to Mars may still be a ways off, but people can take a virtual tour of the Red Planet thanks to a brand new video by the Mars Express Orbiter. People ...

NASA's Perseverance rover captured images of a Martian dust devil consuming a smaller one on the surface of the red planet. Dust devils are "swirling, sometimes towering columns of air and dust," NASA ...

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 ...

Mark was the science editor at Mashable. After working as a ranger with the National Park Service, he started a reporting career after seeing the extraordinary value in educating people about the ...