Type Ia Supernova G299 (image) University of Chicago Share Print E-Mail Caption New research confirms the role Type Ia supernovae, like G299 pictured above, play in measuring universe expansion. Credit Courtesy of NASA Usage Restrictions Only in connection with this press release and this story. Share Print E-Mail 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.