This composite image includes data from Hubble&#8217;s Space Telescope Imaging Spectrograph, which shows suspected plumes of water vapor erupting at the 7 o&#39;clock position off the limb of Jupiter&#39;s moon Europa. The image of Europa, superimposed on the Hubble data, is assembled from data from the Galileo and Voyager missions. Credit: NASA, ESA, W. Sparks (STScI), the USGS Astrogeology Science Center, and Z. Levay (STScI)