How did we get to the Moon? What have we accomplished in the years since? And what challenges lie ahead? To answer these questions, this video tracks the history of Projects Mercury, Gemini, and Apollo; touches on Skylab, the International Space Station, the space shuttle, and the crew exploration vehicle; and considers next steps toward colonizing Mars, including robotic data-gathering missions involving the Spirit and Opportunity rovers, the Mars Reconnaissance Orbiter, and the Mars Science Laboratory. Plans to return to the Moon are also discussed. A viewable/printable instructor’s guide is available online. Correlates to National Science Education Standards, National Educational Technology Standards, and standards of the Association for the Advancement of Science. A Cambridge Educational Production. (24 minutes)