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Group photo with the besties! @NASAHubble captured this rare shot of Jupiter with three of its moons perfectly in view: Europa, Callisto, and Io. While it is common to see any of Jupiter’s larger moons transiting the planet, it is rare to see three do so at once, happening only once or twice per decade. To date, we have discovered over 90 moons around Jupiter. Jupiter has more moons than almost any other planet in our solar system, only beat by Saturn with more than 270. Europa, Callisto, and Io are three of Jupiter's four largest moons, which were first spotted in 1610 by astronomer Galileo Galilei. They were also three of the first moons ever discovered in our solar system (besides our own). Image description: Jupiter dominates the image, shown at an almost perfectly diagonal angle. Three of the planet’s moons — Europa, Callisto, and Io — are visible around its equatorial line, appearing as small circles of varying brightness. Two of the moons cast very noticeable shadows on Jupiter’s body. Io is at the top right of the planet in the image. Europa and Callisto are at the bottom left, with Europa below Callisto. Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA) #NASA #Hubble #SolarSystem #Jupiter #Squad

12.10 00:22

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