The Copernican principle states that, on the large scale, the universe is homogenous and is nowhere special. But it is reported that at least three phenomena call that into question:
A void almost 2 billion light years wide called the CMB coldspot.
A structure strung out over 4 billion light years containing 73 quasars known as the Huge Large Quasar Group.
A group of gamma-ray burst emitting galaxies that form a ring 5.6 billion light years across – 6% of the size of the entire visible universe.Some physicists argue that these phenomena may be evidence for brane theory — the idea that what we perceive as our universe is a single four dimensional membrane floating in a sea of similar (mem)branes spanning multiple extra dimensions.
Image via Daily Galaxy
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