Geysers in Yellowstone National Park (IMAGE) CNRS Caption Geysers in Yellowstone National Park attest to the presence of a supervolcano, which is currently dormant. An eruption of this explosive volcano would impact the entire planet. Credit © P.H. Barry Usage Restrictions May only be used with appropriate credit and caption, to report on this research. 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.