NASA's Juno spacecraft made a close flyby of Jupiter moon lo. See an animation of the images the probe captured created by ...

If you looked at the churning clouds near Jupiter’s pole, they appear like ocean currents on Earth — as if you’re looking at ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

On the fiery Io, the innermost and third-largest of Jupiter’s four Galilean moons, Juno's observations have provided more insights about its incessant volcanic activity. It's a world home to ...

Galileo, who had observed Jupiter’s four major moons (now also called as the Galilean moons) on January 7, 1610 (Gregorian calendar), had already published Sidereus Nuncius (The Sidereal ...

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. They are named Ganymede, Callisto, Io and Europa, after figures in Greek mythology associated with ...

Jupiter’s largest moons, known as the Galilean moons, are known not only for their size but for their unique features. Discovered in 1610 by Galileo Galilei, these moons—Ganymede, Callisto ...

It's also the only moon planetary scientists know of with both an atmosphere and a magnetic field. It's also the only one of Jupiter's four large Galilean moons (the others being Europa ...

ISS then moves to the southeast where it slips into the Earth’s shadow 15 degrees above the horizon at 9:37 p.m. Monday: The Galilean ... all four moons are on the same side of Jupiter.

In 1610, Galileo Galilei observed Jupiter through his telescope and discovered four large moons. The finding prompted him to suggest the then-heretical notion that Earth, like these four Galilean ...

Maps created with data collected by Juno’s Microwave Radiometer (MWR) instrument show that Io has a surface that is more smooth compared to Jupiter’s other Galilean moons, but also has poles ...

Astronomers continue to make new discoveries about the Galilean moons of Jupiter, a thrilling environment of ice and fire. In a pair of studies published this month, the James Webb Space Telescope ...