Freon-40 (IMAGE) University of Cologne Caption The presence of the organohalogen chloromethane (black, carbon; white, hydrogen; green, chlorine) has been detected in the gas around protostar IRAS 16293-2422 (top image) and comet Churyumov-Gerasimenko (bottom image). Credit NASA/JPL-Caltech/WISE Team (top image); European Space Agency/Rosetta/Navcam/Science Photo Library (bottom image) 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.