China’s successful test of an anti-satellite weapon in 2007, followed by the U.S. destruction earlier this year of an out-of-control U.S. satellite, demonstrated that space may soon no longer remain a relative sanctu-ary from military conflict. As the United States, China, and others in-creasingly benefit from the information that military and intelligence satellites provide, the temptation to attack these satellites provides troubling potential for instability and conflict in space that could dra-matically affect U.S. military capabilities on earth.