Source Links
http://www.independent.co.uk/travel/activity-adventure/adventure-holidays/timeline-race-for-space-877676.html
http://en.wikipedia.org/wiki/Pioneer_1
http://en.wikipedia.org/wiki/Nasa
http://www.nasm.si.edu/
http://www.nasm.si.edu/exhibitions/gal100/friend7.html (various tabs and images in this timeline were used)
http://en.wikipedia.org/wiki/National_Aeronautics_and_Space_Act
http://en.wikipedia.org/wiki/Explorer_1
http://en.wikipedia.org/wiki/Alan_Shepard
http://en.wikipedia.org/wiki/Apollo_14
http://en.wikipedia.org/wiki/Venus
http://en.wikipedia.org/wiki/Gemini_4
http://www.npr.org/2011/01/26/4748778/timeline-americas-space-program
http://en.wikipedia.org/wiki/Apollo_11
http://en.wikipedia.org/wiki/Spirit_rover
http://en.wikipedia.org/wiki/Opportunity_rover
http://en.wikipedia.org/wiki/Space_Shuttle_Challenger_disaster
http://en.wikipedia.org/wiki/Hubble_Space_Telescope
http://en.wikipedia.org/wiki/Space_Shuttle_Columbia_disaster
http://www.nasa.gov/ (various areas inside this website were used)
http://todayinspacehistory.wordpress.com/2007/07/20/july-20-1976-first-successful-mars-orbiterlander-missions-viking-1-and-2/
http://en.wikipedia.org/wiki/Apollo_14
http://en.wikipedia.org/wiki/Moon_rock
http://en.wikipedia.org/wiki/Pioneer_10
http://en.wikipedia.org/wiki/Space_Ship_One
http://en.wikipedia.org/wiki/Cassini_spacecraft
http://scienceblogs.com
http://en.wikipedia.org/wiki/SpaceX
http://en.wikipedia.org/wiki/File:Full-size_model_of_NASA%27s_James_Webb_Space_Telescope.jpg
http://en.wikipedia.org/wiki/File:James_Webb_Telescope_Design.jpg
http://en.wikipedia.org/wiki/Final_shuttle_launch
http://en.wikipedia.org/wiki/Discovery%27s_final_mission
http://en.wikipedia.org/wiki/Phoenix_(spacecraft)
http://en.wikipedia.org/wiki/File:2009VersionX33.JPG
http://www.designation-systems.net/dusrm/app4/x-48.html
http://www.nasa.gov/centers/langley/multimedia/iotw-x48c.html
http://en.wikipedia.org/wiki/File:Twin_Linear_Aerospike_XRS-2200_Engine_PLW_edit.jpg
http://en.wikipedia.org/wiki/File:Aerospikeprinciplediagram.svg
http://en.wikipedia.org/wiki/File:X33_Launch_Facility.JPG
http://en.wikipedia.org/wiki/Pioneer_1
http://en.wikipedia.org/wiki/Nasa
http://www.nasm.si.edu/
http://www.nasm.si.edu/exhibitions/gal100/friend7.html (various tabs and images in this timeline were used)
http://en.wikipedia.org/wiki/National_Aeronautics_and_Space_Act
http://en.wikipedia.org/wiki/Explorer_1
http://en.wikipedia.org/wiki/Alan_Shepard
http://en.wikipedia.org/wiki/Apollo_14
http://en.wikipedia.org/wiki/Venus
http://en.wikipedia.org/wiki/Gemini_4
http://www.npr.org/2011/01/26/4748778/timeline-americas-space-program
http://en.wikipedia.org/wiki/Apollo_11
http://en.wikipedia.org/wiki/Spirit_rover
http://en.wikipedia.org/wiki/Opportunity_rover
http://en.wikipedia.org/wiki/Space_Shuttle_Challenger_disaster
http://en.wikipedia.org/wiki/Hubble_Space_Telescope
http://en.wikipedia.org/wiki/Space_Shuttle_Columbia_disaster
http://www.nasa.gov/ (various areas inside this website were used)
http://todayinspacehistory.wordpress.com/2007/07/20/july-20-1976-first-successful-mars-orbiterlander-missions-viking-1-and-2/
http://en.wikipedia.org/wiki/Apollo_14
http://en.wikipedia.org/wiki/Moon_rock
http://en.wikipedia.org/wiki/Pioneer_10
http://en.wikipedia.org/wiki/Space_Ship_One
http://en.wikipedia.org/wiki/Cassini_spacecraft
http://scienceblogs.com
http://en.wikipedia.org/wiki/SpaceX
http://en.wikipedia.org/wiki/File:Full-size_model_of_NASA%27s_James_Webb_Space_Telescope.jpg
http://en.wikipedia.org/wiki/File:James_Webb_Telescope_Design.jpg
http://en.wikipedia.org/wiki/Final_shuttle_launch
http://en.wikipedia.org/wiki/Discovery%27s_final_mission
http://en.wikipedia.org/wiki/Phoenix_(spacecraft)
http://en.wikipedia.org/wiki/File:2009VersionX33.JPG
http://www.designation-systems.net/dusrm/app4/x-48.html
http://www.nasa.gov/centers/langley/multimedia/iotw-x48c.html
http://en.wikipedia.org/wiki/File:Twin_Linear_Aerospike_XRS-2200_Engine_PLW_edit.jpg
http://en.wikipedia.org/wiki/File:Aerospikeprinciplediagram.svg
http://en.wikipedia.org/wiki/File:X33_Launch_Facility.JPG
Images From NASA
First Vanguard Satellite
Explorer 1 Sketch
Explorer 1 People
NASA Logo
Pioneer 1
Gemini 4 Astronauts
Challenger Space Shuttle
Hubble Telescope
Edward White Performing First American EVA
Discovery Space Shuttle
SpaceX Rocket
Apollo 14 Launch
Cassini Assembly
X-48C
Explorer 1 Sketch
Explorer 1 People
NASA Logo
Pioneer 1
Gemini 4 Astronauts
Challenger Space Shuttle
Hubble Telescope
Edward White Performing First American EVA
Discovery Space Shuttle
SpaceX Rocket
Apollo 14 Launch
Cassini Assembly
X-48C