https://www.livescience.com/space/cosmology/enormous-structure-discovered-near-doomed-galaxy-group-is-the-longest-galactic-tail-ever-seen
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6/8/23 at 5:29pm
Organization
Live Science
Author
Joanna Thompson
The 1.5-million-light-year-long gas trail was caused by a group of galaxies moving 3 million miles per hour
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