Betelgeuse: Scientists Solve Mystery of Red Supergiant Star Suddenly Becoming Darker Dubbed "Great Dimming"

Scientists believe they have solved the mystery behind why one of the brightest stars in the sky suddenly became visibly darker. Betelgeuse - a red supergiant located in the constellation of Orion - lost more than two-thirds of its brilliance, sparking fears the star was coming to the end of its life and could be about to explode.