Giant Water Plume Detected Again on Jupiter Moon Europa

What appears to be a huge plume of water vapor has again been spotted emanating from Jupiter's icy moon Europa, boosting scientists' confidence that the phenomenon is real. NASA's Hubble Space Telescope detected a 62-mile-high (100 kilometers) candidate plume near Europa's equator in February 2016, researchers and agency officials announced today (April 13). The newly reported candidate is in the same location as a smaller one that Hubble saw back in March 2014.