When the star Betelgeuse lost two-thirds of its brightness between December 2019 and mid-February 2020, some saw it as the possible precursor sign of its cataclysmic extinction.
The prelude to a brutal explosion called a supernova which corresponds to the moment when a red supergiant at the end of its life suddenly contracts on itself before rebounding in a large fireworks display of gas, dust and extremely energetic radiation to leave behind her than her corpse: a neutron star or a black hole.
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Unfortunately (because the spectacle would have been magnificent seen from the Earth and a priori without danger), the long-awaited catastrophe will not take place.
Not right away anyway.
It was already not certain that a drop in luminosity could be the warning symptom of the end of a star's life, but it was also very transitory.
Quickly, Betelgeuse regained its luster of yesteryear so to speak, leaving all the same the astronomers
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