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NASA has unveiled the initial elements of the Global Exploration Strategy and a proposed U.S. lunar architecture, two critical tools for achieving the nation's vision of returning humans to the moon. The Global Exploration Strategy focuses on two overarching issues: Why we are returning to the moon and what we plan to do when we get there. The strategy includes a comprehensive set of the reasons for embarking upon human and robotic exploration of the moon. NASA's proposed lunar architecture focuses on a third issue: How humans might accomplish the mission of exploring the moon. NASA's Constellation Program is already hard at work on the next generation of human spacecraft -- The Ares I and Ares V launch vehicles and Orion crew capsule. The Lunar Reconnaissance Orbiter launches in 2008 to scout the lunar surface and search for resources. The Lunar Crater Observation and Sensing Satellite will launch with LRO, then crash into the lunar surface to search for water ice.