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Sources:
http://engineer.jpl.nasa.gov/practices/1257.pdf
http://science.ksc.nasa.gov/shuttle/missions/51-l/docs/rogers-commission/Appendix-F.txt
http://science.ksc.nasa.gov/shuttle/missions/51-l/docs/rogers-commission/table-of-contents.html
http://www.nbcnews.com/id/11031097/ns/technology_and_science-space/t/myths-about-challenger-shuttle-disaster/#.VrA2efkrKhd
http://www.popularmechanics.com/space/a18616/an-oral-history-of-the-space-shuttle-challenger-disaster/
http://er.jsc.nasa.gov/seh/explode.html
http://articles.latimes.com/2003/feb/06/science/sci-tiles6
http://www.space.com/19526-columbia-shuttle-disaster-explained-infographic.html
http://www.space.com/19403-nasa-space-shuttle-columbia-disaster-questions.html
http://www.space.com/19436-columbia-disaster.html
Image Sources:
https://commons.wikimedia.org/wiki/File:Challenger_flight_51-l_crew.jpg
https://commons.wikimedia.org/wiki/File:STS-51-L_grey_smoke_on_SRB.jpg
https://en.wikipedia.org/wiki/Space_Shuttle_Challenger_disaster#/media/File:Icicles_on_the_Launch_Tower_-_GPN-2000-001348.jpg
https://commons.wikimedia.org/wiki/File:RogersCommission-v1p57.jpg
https://en.wikipedia.org/wiki/Space_Shuttle_Columbia_disaster#/media/File:Crew_of_STS-107,_official_photo.jpg
https://commons.wikimedia.org/wiki/File:Space_Shuttle_external_tank_foam_block.JPG
https://commons.wikimedia.org/wiki/File:Impact-test.jpg
https://commons.wikimedia.org/wiki/Category:Space_Shuttle_Columbia_disaster#/media/File:Columbia_debris_detected_by_radar.jpg
https://commons.wikimedia.org/wiki/File:Soyuz_TMA-19_docked_to_the_Rassvet_Mini-Research_Module.jpg
https://en.wikipedia.org/wiki/Hubble_Space_Telescope#/media/File:STS-31_Hubble_launch_roll_and_pitch.jpg
https://en.wikipedia.org/wiki/Hubble_Space_Telescope#/media/File:Upgrading_Hubble_during_SM1.jpg
https://en.wikipedia.org/wiki/Spacecraft
https://en.wikipedia.org/wiki/Dragon_V2#/media/File:Dragon_2_hover_test_(24159153709).jpg
https://commons.wikimedia.org/wiki/File:Orion_Drop_Test_on_Feb_29.jpg