The next space shuttle to launch to the International Space Station took another step toward its targeted launch of April 5. On February 22, Discovery moved from Orbiter Processing Facility-3 to the Vehicle Assembly Building at NASA's Kennedy Space Center, Fla. The move from Discovery's hangar is referred to as a "rollover."
Questions about First of Final Four Shuttle Missions Moves Ahead
Want more info about First of Final Four Shuttle Missions Moves Ahead?
Get free advice from education experts and Noodle community members.