A star is reborn: dust cloud blamed for dimming of Betelgeuse

Mystery had enthralled skywatchers since the star began to lose luminosity last October - with some suggesting it could explode

The sudden dimming of one of the Milky Way's brightest stars, Betelgeuse, could be due to a dust cloud spewing up from its surface, astronomers have said.

The mystery has enthralled skywatchers since the star - part of the Orion constellation - began to lose luminosity last October, with some experts suggesting it could herald its explosion into a supernova.