The known universe is enormous. Something on the order of 15 billion light years across. If time and tangible existence began with a big bang, the result was a colossal and by all appearnces endless expansion of known space. Billions of galaxies with billions of stars in each, all flying away from eachother as the universe expands outward.
Carter Emmart and his team of astrophysical wizards at the American Museum of Natuiral History have created an amazing digital rendering of what the living universe looks like, beginning on Earth and traveling outward to the edge of known space.
It's a remarkable six minute plus journey, and it can't help but leave one humbled by the awesome scale of it's vision.
Here is a link to Carter Emmart as he presents 'The Known Universe' to a TED audience...
http://blog.ted.com/2010/07/01/a_3d_atas_of_th/
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