Something Mysterious Appears to Be Suppressing the Universe's Growth, Scientists Say
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Something Mysterious Appears to Be Suppressing the Universe's Growth, Scientists Say::The unexplained cause of the slowed growth of the cosmic web that connects galaxies could hint at new physics.
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For everyone talking about the expansion of the Universe, that's not what this is about. The Universe is still expanding, at an accelerating rate. This work is about the rate of structure formation (the large-scale clumpiness of matter) being slowed down, not the expansion of spacetime.
So the galaxian filaments have surface tension?
If I'm thinking of this right, yes, and it's like they have less than we thought and aren't splitting up into "droplets" (clusters of galaxies) as fast as we think they should be.