Gal Sarid, University of Central Florida (IMAGE) University of Central Florida Caption UCF Researcher Gal Sarid loves challenges and comets that don't act as expected, is definitely a challenge. Credit UCF 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.