00:00The Eridana supervoid spans a colossal region
00:03where galaxy density drops drastically below average.
00:06Thousands of massive galaxy clusters should fill this gap,
00:10but far fewer galaxies exist here.
00:13While astronomers once thought it was completely empty,
00:17recent studies reveal it contains a sparse cosmic web.
00:21Photons passing through this sparse region lose energy,
00:25creating a chilling imprint
00:26on the cosmic microwave background.
00:28Within this vast expanse,
00:31the Eridana supervoid spans nearly a billion light years
00:34as an unusually sparse region
00:36containing significantly fewer galaxies than expected.
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