Four billion years ago, Ganymede literally got knocked sideways. A giant asteroid slammed into Jupiter’s largest moon, ...

But it won't be a star that will be keeping the moon company on this early winter's evening, but the largest planet in the ...

On Dec. 27, 2024, NASA's Juno spacecraft swooped by the volcanic world Io. It witnessed a giant eruption.

Jupiter's largest moon Ganymede is generating "killer" waves of electrons that astronomers say could damage spacecraft going on future missions. These electromagnetic waves can be found all around ...

shifts from half-full to a crescent and reaches peak brightness just after February’s full moon. Jupiter: Second brightest in the east, its four moons—Ganymede, Callisto, Europa, and Io—are ...

For Ganymede, Dexter got consumed by the idea that you could stand on the moon—the most habitable of the four—at night and see Jupiter and its aurora in its sky. “I went for a more modern ...

Jamie Carter is an award-winning reporter who covers the night sky. Icy moon Ganymede—which JUICE will orbit—appears as a gray, mottled orb crossing the face of Jupiter ... [+] in this image ...

shifts from half-full to a crescent and reaches peak brightness just after February’s full moon. Jupiter: Second brightest in the east, its four moons—Ganymede, Callisto, Europa, and Io—are ...

Europa Clipper - one of the most advanced spacecraft ever sent to another planet - aims to explore Jupiter's icy moon ...