In a First, Astronomers Stumble Upon a Dying Galaxy Ejecting its Gas Used to Form Stars
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For the first time, scientists are able to observe the death of a galaxy, which happens when it loses its ability to form stars. In a paper published in Nature Astronomy journal, a team of fifteen scientists observed that the ID2299 galaxy ejected half of the gas it uses to form stars. This observation was captured in Chile by the Atacama Large Millimeter/submillimeter Array of telescopes.
The study found that the galaxy is losing 10,000 suns-worth of gas every year, which is reducing the fuel it needs to form stars by removing 46 percent of the ID2299 s total cold gas so far.