See the 2,500 mile-long (4000 km) Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: ...

NASA’s Mars Reconnaissance Orbiter has spent over a decade capturing detailed images of the Martian surface, revealing dunes unlike anything seen on Earth. Scientists have discovered new formations, ...

Add Yahoo as a preferred source to see more of our stories on Google. This view of a region called Syrtis Major is from the 100,000th image captured by NASA’s Mars Reconnaissance Orbiter using its ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. The orbiter, one of three zooming around Mars' atmosphere, had been working as expected before it ...

The Curiosity Mars rover covers a lot of ground for a robot that only moves at a max speed of .1 mph. A photo snapped recently by NASA’s Mars Reconnaissance Orbiter provides a pretty cool ...