NASA’s MAVEN spacecraft has entered orbit around Mars and is observing the planet's thin upper atmosphere.
On September 21, 2014, NASA’s Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft completed its 10-month journey and entered orbit around the Red Planet. As the first mission devoted to observing the tenuous upper atmosphere of Mars, MAVEN will help scientists determine how much of the atmosphere has been lost throughout the planet’s history and which processes have driven that loss. The spacecraft has already conducted preliminary observations of important gases in the planet’s upper atmosphere and sent those images back to Earth. Watch the videos to learn more about the MAVEN mission.