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For the first time in history, astronomers witnessed a galaxy far away begin to die in a potential breakthrough, according to CNN.
Known as ID2299, the galaxy’s extinction was likely caused by a collision with another galaxy, which eventually merged to create ID2299, the study reported.
Galaxies die when the stars that live in them stop forming.
The compelling evidence that a collision may have caused a gas leak is a tidal tail, which is a long stream of gas and stars that stretches out into space after two galaxies come together in a collision, CNN said, citing the study.
The researchers observed that the galaxy was expelling almost half of the gas it uses to form stars, losing about 10,000 suns of gas each year, which means that it is running out of fuel to produce new stars by removing 46% of the total cold gas from the Galaxy. up to this point.
The study, led by Annagrazia Puglisi, lead researcher on the study and a postdoctoral research associate at Durham University in the UK and the Saclay Nuclear Research Center in France, was published Monday in the journal Nature Astronomy.
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Astronomers captured this rare observation using the Atacama Large Millimeter / submillimeter Array of telescopes in Chile.
According to the study, the light from this galaxy has taken about nine billion years to reach Earth, which means that astronomers are observing how it appeared when the universe was only 4.5 billion years old, knowing that it is now 14 thousand. millions of years.
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