HomeSpace NewsThese rare galaxies aren't forming stars like they should, and scientists don't...

These rare galaxies aren’t forming stars like they should, and scientists don’t know why

An artist’s impression of a post-starbust galaxy. (Image credit: ALMA (ESO/NAOJ/NRAO)/S. Dagnello (NRAO/AUI/NSF))

There’s something weird going on in the universe, specifically in rare galaxies.

Until now, scientists have worked under the belief that post-starburst galaxies (PSBs), or galaxies born from violent galactic collisions that are no longer forming stars, expel gas and dust and remain dormant, or unable to produce new stars. But new observations by the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile indicate that PSBs actually retain much of their gas after the merger, which would typically fuel star formation

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