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Optical image of the Abell 3391/95 system
© Reiprich et al., Astronomy & Astrophysics |
Longest intergalactic gas filament discovered — Universität Bonn
I don't normally write about cosmology and astro-physics because they are not subjects in which I have any particular expertise but the findings of a team of researchers from Bonn, Germany, are interesting from a general science point of view in that they confirm our ideas about the early formation of the Universe are correct. It's also good to have a theory I described in
What Makes You So Special? From the Big Bang To You confirmed by science.
In particular, the scientists confirm models which explain why the Universe is grainy, with stars, galaxies and super-clusters, and not smooth and amorphous as a simple understanding of mathematics that ignore quantum fluctuations seems to predict.
In this simplistic model, atoms should be evenly distributed so there would be no reason for gravity to pull it into clumps to form denser regions. However, small differences produced by quantum fluctuations should produce small areas of increased density where gravity was higher than the surrounding space, so nearby matter would tend to move towards these centres.
Computer simulations predict that this would leave the Universe looking somthing like a sponge with large 'empty' spaces connected by thin filaments of rarified gas forming a basic matrix, and this is exactly what the researchers have found.