Amalthea and Adrastea were both found relatively long ago. Amalthea was found in 1892, by Edward Emerson Barnard; Adrastea was discovered in 1979, by the Voyager team. Both of the planets are actually ...
Jupiter has four large moons – Io, Europa, Ganymede and Callisto – with diameters of more than 3000 kilometres. However, as of April 2023, we know it is also home to 91 additional small satellites.
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