 Christopher C. Kraft Jr. Mission Control Center

NASA's Christopher C. Kraft Jr. Mission Control Center (MCC-H, initially called Integrated Mission Control Center, or IMCC), also known by its radio callsign, Houston, is the facility at the Lyndon B. Johnson Space Center in Houston, Texas, that manages flight control for America's human space program, currently involving astronauts aboard the International Space Station (ISS).The center is in Building 30 at the Johnson Space Center which is named after Christopher C. Kraft Jr., a NASA engineer and manager who was instrumental in establishing the agency's Mission Control operation, and was the first Flight Director.