NASA's Voyager probes passed through Jupiter's system and snapped pictures of its largest moons, also known as the Galilean ...

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.

Newly understood instrumentation readings returned in the 1990s from NASA’s Galileo spacecraft in orbit of Jupiter have revealed that the craft not only encountered but also flew through ejecta ...

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.

The spacecraft will fly through these plumes to collect samples and analyze their composition for signs of life. Europa Clipper will map nearly the entire surface of the moon, providing detailed ...

For 20 years, astrobiologists have been eyeing Europa as a potential ... saw water vapor above the moon's south pole, which scientists suspect came from an erupting plume beneath the icy crust.

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.