UVS-Europa (IMAGE) Southwest Research Institute Caption Southwest Research Institute’s Ultraviolet Spectrograph (UVS) was the first instrument delivered for integration into NASA’s Europa Clipper spacecraft. The instrument collects ultraviolet light to study the composition of the atmospheric gases and surface materials of Europa, one of Jupiter’s largest moons with a suspected subsurface ocean. Credit SwRI Usage Restrictions Images/videos may be used by the media and the public for educational and informational purposes only License Original 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.