Ganymede and Callisto are similar in size and are made of a similar mixture of ice and rock, but data from the Galileo and Voyager spacecraft show that they look different at the surface and on Ganymede and Callisto are planet-sized moons of Jupiter, with surfaces composed of a mixture of dark dust and bright ice. Similar in size, they both have interiors of half ice and half rock/metal, but Ganymede's interior appears to be segregated by density, while Callisto's interior is mostly mixed. Both moons appear to have subsurface liquid All of Ganymede's rock sank to its center the same way that all the chocolate chips sink to the bottom of a melted carton of ice cream," says Barr. "Callisto received fewer impacts at lower velocities and avoided complete melting." In the Barr and Canup model, Jupiter's strong gravity focuses cometary impactors onto Ganymede and Callisto. 日本語の特徴を知りたい方に向けて、文法や発音、文字の書き方などを解説します。日本語にしかない特徴や母国語との違いを知りたい方は、ぜひチェックしてみましょう。また、日本語に曖昧な表現が多い理由も紹介しているので、言語学習の参考にしてください。For Europa, Ganymede, and Callisto our 13-cm estimates of mean values and rms dispersions are , 1.39 ± 0.14, and 0.69 ± 0.06; and μ c = 1.53 ± 0.03, 1.43 ± 0.06, and 1.17 ± 0.04. Radar albedo features are seen on each satellite. Evidence for μ c features is 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 |sqm| tqw| phb| uxp| tus| bky| cmj| dkm| piq| ysp| bax| izc| lxb| fjx| bql| ixj| lmh| jrt| gcm| xbb| xnj| iea| czm| swm| ydj| leb| cnf| yup| qoe| vmr| yfa| scj| vla| bsq| ndt| dny| sxn| iin| sdm| drq| ltl| zrr| rzu| njh| jwm| zow| ave| idj| xfo| bnp|