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In the Spacecraft Assembly and Encapsulation Facility-2 (SAEF-2), the <a href="http://www-pao.ksc.nasa.gov/kscpao/captions/subjects/mars.htm"><b>Mars Polar Lander</b></a> is lowered onto the third stage of the Boeing Delta II rocket before it is transported to Launch Pad 17B, Cape Canaveral Air Station. The lander, which will be launched on Jan. 3, 1999, is a solar-powered spacecraft designed to touch down on the Martian surface near the northern-most boundary of the south pole in order to study the water cycle there. The lander also will help scientists learn more about climate change and cur…