Glassy Rainbow (image) University of Chicago Caption A type of glass created by researchers at the University of Wisconsin-Madison using a new vapor-deposition method is extremely stable. The rainbow of colors in this super-stable glass comes from variations in its thickness. Credit Mark Ediger/University of Wisconsin-Madison Usage Restrictions News organizations may use this image in connection with reports about the work of Juan de Pablo and Mark Ediger. 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.