Regulus (IMAGE) University of Michigan Caption An image of the star Regulus, which University of Michigan astronomers and their colleagues were able to "zoom in" on using a technique called interferometry. Zooming in allowed them to measure the temperature of the star's poles separately from its equator, which enabled them to find flaws in a century-old astronomical theory about hot, fast-spinning stars. Credit Xiao Che 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.