The foamy-looking cosmic web – at this scale we run out of superlatives to describe the large scale structure of the universe. Credit: NASA.
The so-called End of Greatness is where you give up trying to find more superlatives to describe large scale objects in the universe. Currently the Sloan Great Wall – a roughly organised collection of galactic superclusters partitioning one great void from another great void – is about where most cosmologists draw the line.
Beyond the End of Greatness, it’s best just to consider the universe as a holistic entity – and at this scale we consider it isotropic and homogenous, which we need to do to make our current cosmology math work. But at the very edge of greatness, we find the cosmic web. (…) Read the rest of Astronomy Without A Telescope – The Edge of Greatness (526 words)
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(C) Steve Nerlich for Universe Today, 2010. | Permalink | No comment | Add to del.icio.us Post
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