Expanding universe: We may be in a vast bubble

ScienceDaily
Mar 20, 2020, 7:27 pm156 pts
The few thousand galaxies closest to us move in a vast 'bubble' that is 250 million light years in diameter, where the average density of matter is half as large as for the rest of the universe. This is the hypothesis put forward by a theoretical physicist to solve a conundrum that has been splitting the…

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