Light and dark matter in the universe

Description 
This simulation follows the growth of density perturbations in both gas and dark matter components in a volume 1 billion light years on a side beginning shortly after the Big Bang and evolved to half the present age of the universe. It calculates the gravitational clumping of intergalactic gas and dark matter modeled using a computational grid of 64 billion cells and 64 billion dark matter particles. The simulation uses a computational grid of 4096^3 cells and took over 4,000,000 CPU hours to complete.
Duration 
2:09
Video ID 
http://youtu.be/rt_ONJfUsF4
Credit 
Argonne National Laboratory
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