100 Incredible Images of Mars

Detailed, high-resolution images of the Red Planet.

On August 12, 2005, NASA launched the Mars Reconnaissance Orbiter — a spacecraft designed to study the climate and geology of Mars, map the planet’s surface, and survey for potential rover landing sites. The spacecraft orbits Mars at an average distance of 287 kilometers (178 miles), scanning, probing, and photographing the planet in exquisite, unprecedented detail. What follows are images captured by the High Resolution Imaging Science Experiment, one of the Orbiter’s six science instruments…