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Mysterious cosmic lights turn out to be 2 undiscovered supernova remnants
"These two supernova remnants are helping us to better understand the dynamics of our home galaxy’s neighborhood," ...
Smithsonian Magazine2h
An Enormous, Branching String of Galaxy Clusters Is the Largest Known Structure in the Universe, Scientists Say
The cosmic superstructure Quipu is more than 13,000 times the length of the Milky Way, and its mass is 200 quadrillion times ...