Mars Lander Transmits Photos of Arctic Terrain

A 422-million-mile, 10-month journey to Mars ended Sunday with the successful arrival of the Phoenix lander on the Martian surface.

The mission, to the northerly arctic region of Mars, is designed to gather chemical data from soil and water that will allow researchers to better understand the geologic history of water on Mars.  This data will also provide clues as to whether biological life ever existed on this now cold planet.

A full description of the Phoenix mission can be found on NASA's website, complete with pictures, mission updates, and a very cool video summarizing the mission.