“There has been a lot of excitement this month about the supernova in the distant galaxy M82. It is the closest supernova in many years, despite the fact that it’s some 11-12 million light-years away. On a January or February evening, come to know the red star Betelgeuse in the constellation Orion.” THE COSMOS NEWS. ”It’s not only one of Orion’s brightest stars. It’s also a star that astronomers know will one day explode as a supernova. And it’s only 430 light-years away!