The proposed U.S. national space policy would direct NASA to shift its focus from low Earth orbit to the human exploration of the solar system. Robotic trailblazers, such as Spirit and Opportunity now on Mars, can prepare the way, but they cannot replace the human explorers that will one day walk the canyons and plains of the Red Planet. For over 30 years-since the last Apollo astronaut left the Moon-human explorers have been restricted to circling their home world. Now is the time to direct our vision to other worlds. It is time to Aim for Mars! The Planetary Society is leading the drive to redirect human space endeavors through this bold new vision. You can take action today to ensure that the vision becomes reality.