To some there is no vision more reassuring: the cycles of the sun and the moon, the heavens ceaselessly turning. The night sky is unchanging and eternal Or so it seems. But modern astronomy has given us a much different vision: a universe that roils and vents its rage... In fierce radiation jets that erupt from newborn stars. In netherworlds where matter billions of times the mass of our sun collapses to a single point. In the most violent explosions since the Big Bang... The supernova.