03/18/2010 05:12 am ET Updated May 25, 2011

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!