Aerosols From Pyrocumulonimbus Event (IMAGE) NASA/Goddard Space Flight Center Caption Aerosol index image showing some of the highest values recorded from a pyrocumulonimbus cloud in the U.S. Credit NOAA/NASA/C. Seftor 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.