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Astronomy Picture of the Day -- Illustris Simulation of the Universe
NASA ^ | May 12, 2014 | (see photo credit)

Posted on 05/12/2014 8:58:46 PM PDT by SunkenCiv

Explanation: How did we get here? Click play, sit back, and watch. A new computer simulation of the evolution of the universe -- the largest and most sophisticated yet produced -- provides new insight into how galaxies formed and new perspectives into humanity's place in the universe. The Illustris project -- the largest of its type yet -- exhausted 20 million CPU hours following 12 billion resolution elements spanning a cube 35 million light years on a side as it evolved over 13 billion years. The simulation is the first to track matter into the formation of a wide variety of galaxy types. As the virtual universe evolves, some of the matter expanding with the universe soon gravitationally condenses to form filaments, galaxies, and clusters of galaxies. The above video takes the perspective of a virtual camera circling part of this changing universe, first showing the evolution of dark matter, then hydrogen gas coded by temperature (0:45), then heavy elements such as helium and carbon (1:30), and then back to dark matter (2:07). On the lower left the time since the Big Bang is listed, while on the lower right the type of matter being shown is listed. Explosions (0:50) depict galaxy-center supermassive black holes expelling bubbles of hot gas. Interesting discrepancies between Illustris and the real universe do exist and are being studied, including why the simulation produces an overabundance of old stars.

May 12, 2014

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science
[Video Credit: Illustris Collaboration, NASA, PRACE, XSEDE, MIT, Harvard CfA; Music: The Poisoned Princess (Media Right Productions)]

1 posted on 05/12/2014 8:58:46 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The YouTube version

2 posted on 05/12/2014 8:59:27 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

God doesn’t need or want simulations to explain where the universe came from.

But, that’s okay, you can explain to God where you came from. He might laugh.

Or not.


3 posted on 05/13/2014 5:39:04 AM PDT by the anti-mahdi
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To: SunkenCiv


4 posted on 05/13/2014 5:58:41 AM PDT by JoeProBono (SOME IMAGES MAY BE DISTURBING VIEWER DISCRETION IS ADVISED;-{)
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To: SunkenCiv

In the early years it looks more like the Big Splat.


5 posted on 05/13/2014 4:59:42 PM PDT by colorado tanker
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