Capillary Evaporator (IMAGE) NASA/Johnson Space Center Caption Prototype of the Capillary Evaporator hardware comprised of a test stand, lighting backdrop, and test arms to hold transparent capillary structures filled with test fluids. The structures are photographed over the course of several days while the fluids evaporate. Credit IRPI LLC 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.