Point them at Jupiter tonight—or any night during its ... by far the largest of the giant planet’s estimated 79 moons. Their collective name comes from the fact that Galileo first observed ...

Research Fellow Dr. Babak Bakhit has encountered one of his most challenging projects to date—contributing to the European Space Agency's (ESA) JUpiter ICy moons Explorer (JUICE) mission.

one of the 79 moons circling Jupiter. The solid inner core of the Moon is 480 kilometers in diameter, and the outer core of molten liquid iron pushes the total diameter to 660 kilometers.

NASA’s Juno spacecraft identifies over 40 enormous lava lakes on Io, shedding light on the extreme volcanism sculpting Jupiter’s moon.

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however ...

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 solar system: Jupiter. At mid-twilight, roughly 45 minutes after sundown ...

This is one of the mysteries that the space mission JUICE (for JUpiter ICy moons Explorer) will look to elucidate. Initially set to be launched from Kourou, French Guiana, in the early afternoon ...

If you find Jupiter, you’ll likely see four small dots to the side of the gas giant: they are the Galilean moons, four of the 95 natural satellites around the Solar System’s largest planet.

NASA's long-awaited mission to send a spacecraft to scour Jupiter's moon Europa for signs of extraterrestrial life appears to ...