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Cool stuff every day:   / tweetsauce  
Links to learn more below:

music by    / jakechudnow  

"Space Oddity" sung in space by Chris Hadfield:    • Space Oddity  

http://www.howmanypeopleareinspacerig...

Tears in space:    • Tears in Space (Don't Fall)  

Chris Hadfield's videos:    / canadianspaceagency  

My video with minutephysics that talks about oribits:    • Guns in Space  

First man in space: http://en.wikipedia.org/wiki/Yuri_Gag...

list of people who have been to outer space: http://en.wikipedia.org/wiki/List_of_...

history of humans in space (good timeline): http://en.wikipedia.org/wiki/Human_sp...

Good read about "zero-gravity" vs zero-g: https://groups.google.com/forum/#!msg...

Orbit: http://www.orbspace.com/Background-In...

weightlessness: http://en.wikipedia.org/wiki/Weightle...

NASA info on how zero-g affects people: http://science.nasa.gov/science-news/...

flame in space [VIDEO]:    • A Flame in Microgravity, aka 'Zero Gr...  

zero-g biology flow chart: http://www.nsbri.org/humanphysspace/f...

2suit: http://www.wired.co.uk/news/archive/2...

what if a baby was born in space? http://quest.arc.nasa.gov/people/jour...

conception and fertility in space:

http://www.escapistmagazine.com/news/...
http://weboflife.nasa.gov/currentRese...
http://www.lifeslittlemysteries.com/1...

zero-g studies:

rat fetus: http://www.ncbi.nlm.nih.gov/pubmed/37...
pregnant rats: http://jp.physoc.org/content/565/2/59...
http://www.ncbi.nlm.nih.gov/pubmed/83...
muscles: http://jeb.biologists.org/content/204... and http://www.bio.unipd.it/bam/PDF/EJTM1...
radiation and mice brains: http://www.plosone.org/article/info%3...
importance of activity on bone growth: http://ajcn.nutrition.org/content/71/...

Dangers on zero-g:

http://library.thinkquest.org/03oct/0...
http://weboflife.nasa.gov/learningRes...

getting taller while in space: http://www.space.com/19116-astronauts...

tools for combatting zero-g atrophy: http://www.kcl.ac.uk/biohealth/resear...

comparrison of zero-g bone growth to diseases like rickets: http://bit.ly/13qC6zA

rickets:

http://medical-dictionary.thefreedict...
http://en.wikipedia.org/wiki/Rickets

plankton numbers: http://www.chukchiscience.com/Studyth...

plankton from space: http://www.diatomventures.com/Photos....

the mystery of "body" etymology:

http://www.oed.com/view/Entry/20934?r...
http://kaylapeve.blogspot.co.uk/2011/...