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 that manages flight control for America's human space program, currently involving astronauts aboard the ISS. The center 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 1st Flight Director.