Algol, a variable star in the constellation Perseus. (A variable star is one that changes in brightness.) Algol, which was observed by the ancient Greeks and named by the Arabs, is now known to be a complex system of at least four stars revolving around one another. A pair of the stars forms an eclipsing binarytwo stars that pass in front of each other in turn, causing a periodic (cyclical) dimming of their combined light. Algol dims regularly every 21 days and 21 hours.
Do the two meet for one final, fantastic explosion? Or maybe the sun just gets a bit of wind? Or maybe nothing of consequence happens at all? Only one way to find out.
A dying star can explode with the force of a few octillion nuclear bombs and create any element in the universe. But why do stars go supernova?