From the Wikipedia entry on Betelgeuse: "Some theorists[who?] have speculated that this behavior is expected for a star at the beginning of the gravitational collapse at the end of its life.[citation needed] The mass of Betelgeuse puts it in range to become a neutron star or possibly a black hole."
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[ 2.0 ms ] story [ 24.2 ms ] threadSo this might be what is happening. .
http://hhgproject.org/entries/collapsinghrungdisaster.html http://uncyclopedia.wikia.com/wiki/The_Great_Collapsing_Hrun...
Like you even have to ask.