Using data gathered by NASA's Juno Jupiter orbiter, scientists estimate that Europa's ice shell is about 18 miles thick — ...

"What makes the event even more extraordinary is that it did not involve a single volcano, but multiple active sources." ...

The volcanic hot spot is larger than Lake Superior, spewing eruptions six times the total energy of all of the world's power plants.

Jupiter's fourth-largest moon is a main character in our search for other life-friendly places in our solar system.

Advanced analysis of decades-old data from NASA's Galileo spacecraft identifies ammonia-bearing compounds discovered on the surface of Jupiter's moon Europa, as shown in this composite image. Zooming ...

An atmospheric study reveals unexpected findings about our largest neighboring planet and the structure of its deep atmosphere.

Data from NASA's Juno mission has provided new insights into the thickness and subsurface structure of the icy shell encasing ...

"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the ...

Geophysicists at Washington State University have uncovered a possible explanation for how nutrients may travel into the ...

WASHINGTON -- Scientists said they have found evidence of water in the atmosphere of Jupiter's icy moon "Europa." NASA said its Hubble space telescope observed the presence of persistent water vapor ...

NASA's Juno mission has detected the most powerful volcanic eruption ever on Jupiter's moon, Io, revealing an interconnected magma reservoir system beneath its surface.

Baby stars, teenage planets, and disappearing icebergs are all featured this week. Plus, a look back at a New Horizons image ...