We all know that the universe is mind-bogglingly gigantic, but how *exactly* mind-bogglingly gigantic is it? Let Hank fill you in on the details that scientists have worked out!
Why Shouldn’t You Look at the Sun?: https://www.youtube.com/watch?v=SzCKPbg5QRg
Is the Universe Expanding?:
https://www.youtube.com/watch?v=t9276Lk_Ipg
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Sources:http://map.gsfc.nasa.gov/universe/WMAP_Universe.pdf
http://map.gsfc.nasa.gov/universe/uni_fate.html
http://map.gsfc.nasa.gov/universe/uni_shape.html
http://futurism.com/what-lies-beyond-the-edge-of-the-observable-universe/
http://www.universetoday.com/83167/universe-could-be-250-times-bigger-than-what-is-observable/
http://www.universetoday.com/113786/how-big-is-the-universe-2/
http://www.space.com/19027-universe-baby-picture-wmap.html
http://www.space.com/24073-how-big-is-the-universe.html
http://io9.gizmodo.com/5799335/five-weird-theories-of-what-lies-outside-the-universe
Media:
https://commons.wikimedia.org/wiki/File:New_shot_of_Proxima_Centauri,_our_nearest_neighbour.jpg
https://commons.wikimedia.org/wiki/File:Constellation_Fornax,_EXtreme_Deep_Field.jpg
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