
The steep walls of Valles Marineris sometimes fail, creating giant landslides.

Many impact craters on Mars were filled with ice in past climates.

NASA Administrator Charles Bolden, left, and Pascale Ehrenfreund, Chair of the Executive Board, German Aerospace Center (DLR), are seen Thursday,…

Subtle variations in color look like brush strokes as the lightly frosted terrain reflects light.

A smoke alert was issued by the Australian government for the area around the prescribed fires in Western Australia.

NASA-NOAA’s Suomi NPP satellite passed over Australia’s Cape Barren Island and captured an image of phytoplankton and smoke from fires…

This graphic shows a frame from a computer simulation (main image) and astronomical data (inset) of a distant galaxy undergoing…

An astronaut aboard the International Space Station (ISS) used a long lens to document what crews have termed one of…

This relatively bright outcropping of rock, dubbed “Gasconade,” was investigated by NASA’s Mars Exploration Rover Opportunity.