Carbon cocoons surround growing galaxies—ALMA spots earliest environment pollution in the universe

Carbon cocoons surround growing galaxies—ALMA spots earliest environment pollution in the universe
Researchers have discovered gigantic clouds of gaseous carbon spanning more than a radius of 30,000 light-years around young galaxies using the Atacama Large Millimeter/submillimeter Array (ALMA). This is the first confirmation that carbon atoms produced inside of stars in the early universe have spread beyond galaxies. No theoretical studies have predicted such huge carbon cocoons around growing galaxies, which raises questions about our current understanding of cosmic evolution.
phys.org
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