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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]
MORE: New NASA photos show fiery eruptions from volcanos on Jupiter's moon. NASA's 100-foot-long and approximately 58-foot-wide Clipper probe is the largest spacecraft the agency has built for a ...
The Jupiter Icy Moons Explorer (Juice, formerly JUICE [3]) is an interplanetary spacecraft on its way to orbit and study three icy moons of Jupiter: Ganymede, Callisto, and Europa. These planetary-mass moons are planned to be studied because they are thought to have beneath their frozen surfaces significant bodies of liquid water, which would ...
0.1 μPa (10 −12 bar) [15] Europa / jʊˈroʊpə / ⓘ, or Jupiter II, is the smallest of the four Galilean moons orbiting Jupiter, and the sixth-closest to the planet of all the 95 known moons of Jupiter. It is also the sixth-largest moon in the Solar System. Europa was discovered independently by Simon Marius and Galileo Galilei [2] and was ...
NASA’s Pioneer 10 and 11 spacecraft flew by Jupiter in the early 1970s, but the first spacecraft to image the surfaces of Jupiter's moons in significant detail were the Voyager 1 and 2 probes in ...
The Europa Lander is a proposed astrobiology mission concept by NASA to send a lander to Europa, an icy moon of Jupiter. [3][4] If funded and developed as a large strategic science mission, it would be launched in 2027 to complement the studies by the Europa Clipper orbiter mission and perform analyses on site. [5]
Callisto (/ kəˈlɪstoʊ / kə-LIST-oh), or Jupiter IV, is the second-largest moon of Jupiter, after Ganymede. In the Solar System it is the third-largest moon after Ganymede and Saturn 's largest moon Titan, and nearly as large as the smallest planet Mercury. Callisto is, with a diameter of 4,821 km, roughly a third larger than Earth's Moon ...
NASA's JIMO (Jupiter Icy Moons Orbiter), which was canceled in 2005, [76] and a European Jovian Europa Orbiter mission were also studied, [77] but were superseded by the Europa Jupiter System Mission. The Europa Jupiter System Mission (EJSM) was a joint NASA/ESA proposal for exploration of Jupiter and its