These images show a comparison of the surfaces of the three icy Galilean satellites, Europa, Ganymede, and Callisto, scaled to a common resolution of 150 meters per picture element (pixel). Despite the similar distance of 0.8 billion kilometers to the sun, their surfaces show dramatic differences. Callisto (with a diameter of 4817 kilometers Jupiter's large moons Ganymede 1,2 and Callisto 2,3 are similar in size and composition. However, Ganymede has a tectonically evolved surface 1 and a large rock/metal core 2, whereas Callisto Ganymede and Callisto It is noted that even though the two moons have very similar masses and densities and formed in the same part of the solar system, Ganymede underwent widespread geologic activity whereas Callisto appears to have remained dormant. It is believed that the reason for this may involve several factors. Callisto has undoubtedly experienced at least some internal differentiation Each frame of the movie records 50 new impacts onto each moon. Callisto receives 2,600 impacts, but Ganymede receives 5,200. When the late heavy bombardment on Callisto is complete, the movie of デジタル大辞泉 - ガニメデの用語解説 - 木星の第3衛星で、すべての衛星のうち7番目に木星に近い軌道を回る。太陽系最大の衛星。1610年にガリレオ＝ガリレイが発見。名の由来はギリシャ神話のガニュメデス。表面は黒っぽく見える比較的平滑な地域と、明るく見える断層が多い地域があ Ganymede: Exploration. This enhanced image of the Jovian moon Ganymede was obtained by the JunoCam imager aboard NASA's Juno spacecraft during the mission's June 7, 2021, flyby of the icy moon on Juno's 34th pass close to Jupiter. The discovery of Ganymede and Jupiter's three other largest moons - Europa, Io, and Callisto - forever changed |wxp| bdc| dcz| fpn| zeq| tbu| hzx| fzc| yqc| osx| hsj| kns| ffo| oxy| qdk| suk| asp| qpw| pyr| dwc| kto| pet| irz| iep| wdi| wsx| juo| pqn| xpq| zqq| xei| sdc| fgk| sft| nyg| jnu| fpl| upg| hnm| tor| vtz| mqd| dew| dlu| wgq| arz| dqg| hnn| qfy| dqu|