chronology
The address of the Manned Space Flight Education Foundatio is: 1601 Nasa Pkwy, Houston, TX 77058-3145
NASA is not stopping manned space flight, but instead is shifting focus to a new program called Artemis, aiming to return humans to the Moon by 2024 and eventually onto Mars. The Artemis program represents a continuation of NASA's commitment to human space exploration.
The Mercury Program was the first manned space flight program,
Apollo 17 was the eleventh manned space mission in the NASA Apollo program. It was the first night launch of a U.S. human spaceflight and the sixth and final lunar landing mission of the Apollo program. The mission was launched at 12:33 a.m. EST on December 7, 1972, and concluded on December 19. It remains both the most recent manned moon landing and manned flight beyond low Earth orbit.
All major NASA space vehicle launches involving Manned Flight operations are executed at the Kennedy Space Center, Cape Canaveral, FLorida.
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NASA has sent several unmanned space probes to Saturn, but no manned missions.
Each manned Mercury launch carried a single astronaut. Gemini ... two Apollo ... three Shuttle ... several
The Lyndon B. Johnson Space Center is the National Aeronautics and Space Administration's center for human spaceflight training, research, and flight control. The center consists of a complex of one hundred buildings constructed on 1,620 acres in Houston, Texas. The center, originally known as the Manned Spacecraft Center, grew out of the Space Task Group formed soon after the creation of NASA to co-ordinate the US manned spaceflight program.
Manned Exploration, commonly referred to in NASA as Manned Flight, is any mission which involves the direct participation in space of a human being, be it as a pilot, specialist, or just a casual observer. The 2 most notable current MF programs are the International Space Station and the Space Shuttle. All NASA Manned Flight missions are directed from the main Mission Control Center in Houston, Texas, at the Johnson Space Center.Unlike unmanned satellite programs, Manned Flight programs are much more stringently controlled , Higher QA and manufacturing controls, a LOT more documentation (reams....), and more procedural controls are the biggest differences, as the smallest mistake can lead to catastrophic failure leading to loss of crew, vehicle, or both.In all cases where loss of life has happened (Apollo 1, Challenger and Columbia), one of those 3 elements was found to be lacking.As one who worked NASA Manned Flight programs for many years, I can say that the awareness of the responsibility for us working those programs was extremely high. Everyone knows what the stakes are each time a manned mission flies - and everyone feels it if something goes wrong.
Actually, NASA has had several missions to Mars, just none manned as yet.
NASA's Johnson Space Center (named for President Lyndon B. Johnson, who was also Senator from Texas and instrumental in getting it built there) is NASA's center in Houston for manned flight missions/control, and astronaut training.