The moon greets Jupiter two days ahead of its full moon phase on Feb. 1.

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

New images of Jupiter moon Io show massive volcanoes, a scarred landscape and lava flows. Jupiter has a total of 92 moons, and Io is slightly larger than Earth’s moon.

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the beginning.

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

Turn a telescope to the eastern sky in the hours following midnight on Nov. 5 to see two colossal shadows darken the cloud tops of the gas giant Jupiter as the Galilean moons Io and Europa pass ...

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

Add Yahoo as a preferred source to see more of our stories on Google. Titan (left) and Europa (right). (Left: NASA/JPL/University of Arizona/University of Idaho ...

On January 18, 2026, the new moon creates dark skies for observing Jupiter, Saturn, and the Orion constellation. Detailed positions and celestial coordinates for global observers are provided.

Astronomers have discovered 12 new moons around Jupiter, putting the total count at a record-breaking 92. That's more than any other planet in our solar system. Saturn, the one-time leader, comes in a ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...