Scientists strongly believe there is an ocean deep under the ice surface of Europa . The Hubble Space Observatory captured a spectrographic image showing water vapor . Astronomers believe it came from a geyser close to the hidden ocean . ( CNN ) -- The vapor could make it possible for a space probe to scan the water for signs of life .
Scientists strongly believe there is an ocean deep under the ice surface of Europa . The Hubble Space Observatory captured a spectrographic image showing water vapor . Astronomers believe it came from a geyser close to the hidden ocean . The vapor could make it possible for a space probe to scan the water for signs of life .