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The Online Star Register Blog

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Betelgeuse Dimming Mystery Solved

- 12 July 2020

betelgeuse mystery

The red supergiant Betelgeuse unexpectedly dimmed in late 2019. Astronomers began to speculate that it may have reached the end of its lifecycle. However, it’s no longer dim. Read on to find out what caused it to dim and what astronomers think will happen next.