Comet ISON Track (IMAGE) NASA/Goddard Space Flight Center Caption From now through October, comet ISON tracks through the constellations Gemini, Cancer and Leo as it falls toward the sun. Credit NASA's Goddard Space Flight Center/Axel Mellinger 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.