NASA Space Exploration: 9 Most Incredible Missions This Decade, 2000-2009 (PHOTOS)

The launch of WISE (Wide-Infrared Survey Explorer) on Dec. 11, 2009, will be one of the last notable events for NASA this decade.

And what a decade of breathtaking, exciting, and surprising space exploration it's been, from Cassini's discovery of geysers on Saturn, to NASA's "moon bombing" in 2009.

Check out our picks for the most incredible and memorable missions from 2000 to 2009 in the slideshow below -- but we need your help ranking them. Vote for your favorite missions!

Mars 2001 Odyssey

Launched April 7, 2001, the Odyssey made insertion into the Mars Orbit on Oct. 24, 2001. It officially began a 917-day mission to map the Martian surface and find evidence of water ice on Mars.

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