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ALMA captures distant colliding galaxy dying out as it loses the ability to form stars

20 Jan 2021, 10:33 UTC
ALMA captures distant colliding galaxy dying out as it loses the ability to form stars ESO/M. Kornmesser

Galaxies begin to “die” when they stop forming stars, but until now astronomers had never clearly glimpsed the start of this process in a far-away galaxy. Using the ALMA, astronomers have seen a galaxy ejecting nearly half of its star-forming gas.

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