Something is going on with red supergiant star Betelgeuse (not the guy in the movie). It's getting unusually dimmer at an unprecedented rate. Astronomers have already predicted that the star will explode in a supernova sometime in the next 100,000 years; perhaps it is entering its death throes.
Since Betelgeuse is 700 light years from Earth it is already possible it exploded at some point in the past seven centuries and we just don't know it you. That time travel stuff is tricky.
Better keep an eye on things. You can read more here.
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