Manned Space Exploration

Overcoming gravity:
http://www.nasa.gov/centers/glenn/shuttlestation/station/microgex.html
Slingshot effect: http://www.scientificamerican.com/article.cfm?id=how-does-the-slingshot-ef
Orbiting: http://spaceplace.nasa.gov/how-orbits-work/en/
Distances in space: http://janus.astro.umd.edu/astro/distance/


Effects of microgravity on the body:
http://www.asc-csa.gc.ca/pdf/educator-microgravity_science_stu.pdf
http://www.scientificamerican.com/article.cfm?id=how-does-spending-prolong
http://www.nsbri.org/DISCOVERIES-FOR-SPACE-and-EARTH/The-Body-in-Space/
http://www.pbs.org/spacestation/station/living_microgravity.htm
Space suits- images and history: http://web.mit.edu/16.00/www/aec/spacesuit.html
Space suits- inside spacecraft:http://spaceflight.nasa.gov/living/spacewear/index.html
Space suits- outside spacecraft http://er.jsc.nasa.gov/seh/suitnasa.html
Space suit construction: http://www.pbs.org/spacestation/station/living_spacesuit.htm


Space food: http://spaceflight.nasa.gov/living/spacefood/index.html http://www.nasa.gov/centers/johnson/pdf/167750main_FS_SpaceFood508c.pdf
http://www.pbs.org/spacestation/station/living_eating.htm


Waste management:
http://indianapublicmedia.org/amomentofscience/waste-in-space/
http://science.nasa.gov/science-news/science-at-nasa/2001/ast03apr_2/
http://www.pbs.org/spacestation/station/living_sanitation.htm


Living and working in space: http://www.pbs.org/spacestation/station/living_sleeping.htm
http://www.nasa.gov/centers/johnson/pdf/167746main_FS_LivingandWorkinginSpace508c.pdf


Space Shuttle construction: http://www.nasa.gov/returntoflight/system/system_Orbiter.html
International Space Station construction: http://www.nasa.gov/mission_pages/station/main/onthestation/facts_and_figures.html