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One of the brightest stars in the sky dimmed in 2019. Now we know why.

The star Betelgeuse visibly dimmed in 2019. Now, a new analysis reveals why: Betelgeuse blew out and is still recovering. 

The red supergiant star, which is about 530 light-years from Earth, is among the brightest in the night sky. The star forms the shoulder of the constellation Orion (The Hunter). It’s also geriatric: Betelgeuse is nearing the end of its stellar life and will eventually explode in a supernova visible from Earth, though it might take another 100,000 years, according to 2021 research

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