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

The star Betelgeuse visibly faded in 2019. Now, a new analysis reveals why: Betelgeuse exploded 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 supernova visible from Earth, although it may take another 100,000 years, according to 2021 research.

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