Stock Photo - 01/28/2002 __ Space Shuttle Columbia, atop its Mobile Launcher Platform, begins the ascent up the incline to Launch Pad 39A. Columbia is scheduled to be launched Feb. 28 on mission STS_109, a Hubble Servicing Mission. The goal of the mission is to replace Solar Array 2 with Solar Array 3, replace the Power Control Unit, remove the Faint Object Camera and install the ACS, install the Near Infrared Camera and Multi_Object Spectrometer NICMOS Cooling System, and install New Outer Blanket Layer insulation. The launch will be the first for Columbia after returning from California where it underwent extensive maintenance, inspections and enhancements. More than 100 upgrades make Columbia safer and more reliable than ever before