The origins of Jupiter's Galilean moons is a long-standing mystery. But new research suggests a promising pathway for how they may have formed. From bottom to top is Io, ...

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 ...

The first astronomer to discover moons around Jupiter was Galileo, back in the year 1610, but astronomers are still finding more and more moons around this gas giant.

Jupiter's Galilean moons are also visible this evening, but spotting them may be challenging with the planet so low. If you want to try, note that your location - which will affect the time you're ...

For decades scientists have struggled to understand the strange density differences in Jupiter’s four Galilean moons—which, in order from closest to the planet to farthest from it, are Io ...

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.

An artist’s concept of a lava lake on Jupiter’s moon Io called Loki Patera. ... Europa, Ganymede, and Callisto–are called the Galilean moons. Io is most volcanically active.

Most of us know four moons of Jupiter, called the Galilean moons because they were first discovered by Galileo in 1610. Named for figures closely associated with Jupiter from Greek mythology, Io ...

Jupiter's four Galilean moons were discovered by Italian astronomer Galileo Galilei in 1610. NASA's Juno spacecraft launched from Earth in 2011 and entered Jupiter's orbit in 2016.

A team of astronomers observing Jupiter's Galilean moons have found that four of these intriguing worlds also boast brilliant auroral light shows. Discovered by Galileo in the early 1600s, ...

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 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 ...