Here's this week's image for the WITU Challenge, to test your visual knowledge of the cosmos. Take a look at this image and see if you can determine where in the universe this image is from. This one is a little different, but several readers sent it in, suggesting we use it. We'll provide the image today, but won't reveal the answer until tomorrow. This gives you a chance to mull over the image and provide your answer/guess in the comment section. Please, no links or extensive explanations of what you think this is — give everyone the chance to guess.
UPDATE: The answer has now been posted below.
This is a model of an exploding star's core created by the U.S. Department of Energy's Argonne National Laboratory developed to help show what happens inside core-collapse supernovae. The model was made using the lab's IBM Blue Gene/P machine, currently ranked seventh on a list of the world's most powerful supercomputers. Argonne's Blue Gene/P boasts more than 160,000 processors, as many as would be found in Giants Stadium were it filled to capacity with people toting dual-core laptops.
To find out more about this images see
this article in Scientific American.