Exploring Jupiter’s 4 biggest moons. By Mike Lynch; Wednesday, April 13, 2016 4:16pm; Life; I know you’ve seen it: that super-bright star beaming in the southeast sky as soon as darkness sets in.

Jupiter’s four largest moons can’t be on just one side of the planet, but several times per year, some can be in front while others behind. Skip to content.

The four largest moons of Jupiter - Io, Europa, Ganymede, and Callisto - have newly discovered auroras that can be seen in visible light.

This image of Jupiter’s moon Europa was captured by the JunoCam instrument aboard NASA’s Juno spacecraft during the mission’s close flyby on September 29, 2022.

From left, Europa, Callisto and Io, three of the four largest moons of Jupiter, and their shadows crossing the red giant in an image captured by the Hubble Space Telescope in 2015.

Jupiter will be at its biggest and brightest as the gas giant reaches its closest point to Earth this month, the agency said last week. It will remain visible to the naked eye all night.

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. ... Saturn's biggest moon by far is Titan, with almost twice the mass of Earth's moon.

Jupiter will get so close to Earth this month that the planet and its largest moons will be visible with binoculars. The best day to see Jupiter is June 10 when it reaches its “opposition.” ...

If skygazers use a pair of binoculars, clear conditions will treat them to a view of the Galilean satellites—the four largest moons of Jupiter, first discovered in 1610 by Galileo.

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, Io ...

As a newborn planet, Jupiter glowed brightly in the sky and outshined today’s sun from the perspective of the gas giant’s largest moons. That early radiance—and upcoming visits by multiple ...

Jupiter's moon Ganymede was hit by an asteroid about 4 billion years ago that was so large the moon's axis shifted as a result, ... Ganymede, the biggest moon in the solar system, ...