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stars change

At the end of 2019, the light of the star dimmed and went from the brightest in the Orion group to the third brightest. Since then it has returned and become even brighter than before
It's not a fast radio burst, a pulsar, or a low-mass star that flares up every now and then. It is the radiating body in the radio field only for a few weeks, disappears at once, and returns again after a while. the researchers
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