Chimney Vents Hydrothermal Fluids (IMAGE) University of Washington Caption An approximately 2-foot-tall chimney on Axial Volcano vents hot hydrothermal fluids like the ones collected by University of Washington researchers in the search of archaea capable of fixing nitrogen at high temperatures. Credit Courtesy of the NOAA Vents Program Usage Restrictions NOAA Vents Program must be credited 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.