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The Historyscoper's Science and Technology Watch Blog Apr. 2, 2015

Saturday, November 25, 2023

Ho’oleilana, a Billion-Light-Year-Wide Bubble of Galaxies, Astounds Astronomers

https://www.scientificamerican.com/article/ho-oleilana-a-billion-light-year-wide-bubble-of-galaxies-astounds-astronomers/ 

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