European Space Agency astronaut Andre Kuipers of the Netherlands, left, NASA Science Officer Mike Fincke, center and Expedition 9 Commander Gennady Padalka sign books, envelops and mementos in the space museum located at the Baikonur Cosmodrome, Wednesday, April, 14, 2004, in Baikonur, Kazakhstan. Photo Credit: "NASA/Bill Ingalls"