Supernova Explosion (IMAGE) Princeton University Caption The new 3-D simulations like this one are based on the idea that the collapsing star itself is not sphere-like, but distinctly asymmetrical and affected by a host of instabilities. Credit Princeton University/Adam Burrows and Jason Nordhaus Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.