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A montage of Jupiter and its four largest moons (distance and sizes not to scale) There are 95 moons of Jupiter with confirmed orbits as of 5 February 2024. [1] [note 1] This number does not include a number of meter-sized moonlets thought to be shed from the inner moons, nor hundreds of possible kilometer-sized outer irregular moons that were only briefly captured by telescopes. [4]
The sizes and masses of many of the moons of Jupiter and Saturn are fairly well known due to numerous observations and interactions of the Galileo and Cassini orbiters; however, many of the moons with a radius less than ~100 km, such as Jupiter's Himalia, have far less certain masses. [5]
Europa (Jupiter II), the second of the four Galilean moons, is the second closest to Jupiter and the smallest at 3121.6 kilometers in diameter, which is slightly smaller than Earth's Moon. The name comes from a mythical Phoenician noblewoman, Europa , who was courted by Zeus and became the queen of Crete , though the name did not become widely ...
Jupiter has surpassed Saturn with the record for the planet with the most moons in our solar system. The gas giant has a total of 92 confirmed moons, according to new observations by astronomers.
A well-known feature of Jupiter is the Great Red Spot, [103] a persistent anticyclonic storm located 22° south of the equator. It was first observed in 1831, [ 104 ] and possibly as early as 1665. [ 105 ] [ 106 ] Images by the Hubble Space Telescope have shown two more "red spots" adjacent to the Great Red Spot.
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Steven Hobbs via GettyNASA’s Jupiter-orbiting space probe Juno just snapped the most high resolution pic of one of the gas giant’s moons yet.The spacecraft captured a close-up shot of the icy ...
NASA's Juno spacecraft has zipped past Jupiter's poles, watched its Great Red Spot churn, and visited its largest moon. 10 years after NASA launched its Juno mission to Jupiter, these are its most ...