Charon (IMAGE) Georgia Institute of Technology Caption This is Charon, a moon of Pluto. When Charon is positioned between the sun and Pluto, Georgia Tech research indicates that the moon can significantly reduce atmospheric loss. Credit NASA-JHUAPL-SwRI 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.