SPHERES-Slosh (image) NASA/Johnson Space Center Caption Pill-shaped tanks partially filled with water are attached to the small satellites for the SPHERES-Slosh investigation aboard the International Space Station to simulate the movement of rocket fuels as they slosh inside the tanks. Credit Florida Institute of Technology/Dr. Daniel Kirk Usage Restrictions Florida Institute of Technology/Dr. Daniel Kirk 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.