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This is a list of cancellations and terminations made by NASA. Program terminations ... Laser Interferometer Space Antenna - 2011; Space Interferometry Mission - 2010;
Columbia would have launched from Kennedy Space Center, then executed a 180-degree turn at a speed of 8,400 kilometres per hour (5,200 mph), or 6.7 times the speed of sound, in order to land at the Kennedy Space Center runway. The mission was canceled when astronauts refused to fly it, having deemed the plan to be too dangerous.
The longest orbital flight of the Shuttle was STS-80 at 17 days 15 hours, while the shortest flight was STS-51-L at one minute 13 seconds when the Space Shuttle Challenger broke apart during launch. The cold morning shrunk an O-Ring on the right Solid Rocket Booster causing the external fuel tank to explode.
Pages in category "Cancelled space missions" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. A. Advanced Gemini;
First crewed flight End date No. of crewed missions launched Notes Mercury program: 1958 1961: 1963: 6: First U.S. crewed program Gemini program: 1961 1965: 1966: 10: Program used to practice space rendezvous and EVAs: Apollo program: 1960 1968: 1972: 11: Landed first humans on the Moon Skylab: 1964 1973: 1974: 3: First American space station ...
Likewise, the canceled flights' CSMs and LMs went either unused or were used for other missions: After Apollo 15's original H mission was canceled, there was a surplus H mission CSM and Lunar Module. CSM-111 was used for the Apollo–Soyuz Test Project (ASTP). LM-9 is on display at the Kennedy Space Center (Apollo/Saturn V Center)
All Space Shuttle missions were launched from the Kennedy Space Center (KSC) in Florida. Some civilian and military circumpolar space shuttle missions were planned for Vandenberg AFB in California. However, the use of Vandenberg AFB for space shuttle missions was canceled after the Challenger disaster in 1986.
The list for the year 2025 and for its subsequent years may contain planned launches, but the statistics will only include past launches. For the purpose of these lists, a spaceflight is defined as any flight that crosses the Kármán line , the FAI -recognized edge of space, which is 100 kilometres (62 miles) above mean sea level (AMSL) . [ 1 ]