Color Sensors on Space Station (IMAGE) University of Utah Caption After space shuttle Discovery launched on Aug. 28, it delivered to the International Space Station a water quality monitoring kit developed by University of Utah chemists. Part of the kit, which is the size of a small ice chest, is shown here, with two commercially available color sensors that will be used during six months of testing to check for levels of the disinfectants iodine and silver in space station drinking water. Credit NASA Usage Restrictions Credit NASA. 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.