NASA scientists say images taken by the Hubble Space Telescope in 2014 suggest there may be water vapor plumes erupting off the surface of Jupiter's moon Europa. WSJ's Monika Auger reports.

In 2013, the Hubble Space Telescope spotted water vapor on Jupiter's moon Europa. The vapor was evidence of plumes similar to the ones on Saturn's moon Enceladus. That, and other compelling ...

"Europa is an ice covered moon of Jupiter, about the size of ... on the lookout for signs of water plumes and other ocean-driven features. Two magnetometers will probe the sub-surface ocean ...

Clipper has two mass spectrometry instruments to survey the moon's chemistry. All of these instruments work together to give a full picture of Europa’s environment. If plumes are identified, ...

Though Europa is only the size of our own moon, it holds more water than all ... ocean as pieces of the crust slide under each other. Plumes and deep fissures may provide other routes into the ...

Earth might seem special in this regard but water is actually fairly abundant in our system, and Jupiter’s icy moon Europa is quickly becoming a prime candidate in the search for life.

Cassini first discovered evidence of a vast ocean on Enceladus by spotting plumes of water vapor jutting ... on a distant world like Jupiter's moon Europa or Saturn's moon Enceladus.