Juno Ganymede flyby (IMAGE) Southwest Research Institute Caption Using Hubble Space Telescope datasets and comparing them to the expected values of atmospheric emissions, Southwest Research Institute scientists played a crucial role in this discovery of water vapor in the atmosphere of Jupiter’s icy moon Ganymede, shown here in a recent image captured by the Juno spacecraft. Credit NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill Usage Restrictions Images/videos may be used by the media and the public for educational and informational purposes only 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.