The U.S. Space & Rocket Center (USSRC) is the Official Visitor Center for NASA’s Marshall Space Flight Center and is a Smithsonian Affiliate. The U.S. Space & Rocket Center host one of the largest collections space memorabilia and rockets on display anywhere in the world. "Earth's largest space museum" Opened in 1970 and is home to U.S. Space Camp and the Aviation Challenge -military fighter pilot training