Professor Adam S. Burrows says in a cover story published in today's Nature .
Supernovae explode with forces of incomprehensible magnitude.
Or you can think of it as the force of the simultaneous explosion of 25 hundred trillion trillion nuclear weapons. It's its own scale. It would be like taking hundreds of Earths and converting that mass to energy. It would be energy comparable to the total amount of energy the sun radiates in 10 billion years, although the supernova explosion is the energy of motion rather than light. And the supernova explosion happens not over billions of years but in a matter of seconds.