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Space Shuttle Challenger
Space Shuttle Challenger Shuttle Orbiter Challenger (NASA Designation: OV-99) was a Space Shuttle orbiter. Challenger was the second shuttle orbiter to be placed into service (after Columbia) and was constructed using a body frame (STA-099) that had initially been produced for use as a test article. Its maiden voyage was on April 4, 1983, and made eight subsequent round trips to low earth orbit before it was destroyed during launch for its tenth mission, mission 51-L. Table of contents showTocToggle("show","hide") 1 Flights 2 Flight Log 3 Related articles 4

Space Shuttle Columbia disaster
Space Shuttle Columbia disaster Crew of STS-107 on launch day () STS-107 was a space shuttle mission by NASA using the Space Shuttle Columbia. The entire seven member crew was killed on February 1, 2003, when the shuttle disintegrated over Texas during reentry into the Earth's atmosphere.This was the second total loss of a Space Shuttle, the first being Challenger. Table of contents showTocToggle("show","hide") 1 Timeline 2 Effect on US space program 3 Investigation 3.1 The Columbia Accident Investigation Board 4 Shuttle Crew of Flight STS-107 5 External Links Timeline At about 05:54 PST (08:54 EST), a California news photographer observed pieces breaking away from Columbia as it passed overhead, as well as a red flare coming from the shuttle itself. At about 09:00 EST (14:00

Canadian space program
Canadian space program Canada has contributed expertise and personnel to the world space effort, especially in collaboration with NASA. Eight Canadians have participated on 11 NASA missions to date: Name Shuttle Mission Launch Date Notes Marc Garneau Challenger STS-41-G October 5, 1984 First Canadian in space Roberta Bondar Discovery STS-42 January 22, 1992 First Canadian woman in space Steven G. MacLean Columbia STS-52 October 22, 1992 Chris Hadfield Atlantis STS-74 November 12, 1995 Marc Garneau Endeavour STS-77 May 19, 1996 Robert Thirsk Columbia STS-78 June 20, 1996 Bjarni Tryggvason Discovery STS-85 August 7, 1997 Dafydd Rhys Williams Columbia STS-90 April 17, 1998 Julie Payette Discovery STS-96 May 27, 1999 Marc Garneau Endeavour STS-97 November 30, 2000 Chris Hadfield Endeavour STS-100 April 19, 2001 First spacewalk by a

While all of this was going on, others were suggesting a completely different approach to the future. They stated that NASA was better off using the existing Saturn to launch their space station, supplied and manned using modified Gemini capsules on top of the Air Force's newer Titan II-M. The cost of development for this looked to be considerably less than the shuttle alone, and would have a large space station in orbit earlier.

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NASA had conducted a series of paper-projects throughout the 1960s on the topic of reusable spacecraft to replace their expedient "one-off" systems like Mercury, Gemini, and Apollo.