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Whether Ganymede has an ionosphere associated with its atmosphere is unresolved. [24] Ganymede's surface is composed of two main types of terrain, the first of which are lighter regions, generally crosscut by extensive grooves and ridges, dating from slightly less than 4 billion years ago, covering two-thirds of Ganymede.
The largest, Ganymede, is the largest moon in the Solar System and surpasses the planet Mercury in size (though not mass). Callisto is only slightly smaller than Mercury in size; the smaller ones, Io and Europa, are about the size of the Moon. The three inner moons — Io, Europa, and Ganymede — are in a 4:2:1 orbital resonance with
Complex plasma interactions in Io's atmosphere create immense electrical currents which couple to Jupiter's atmosphere. [160] [247] Several lines of evidence from Galileo support the theory that liquid oceans exist under Europa's icy surface. [160] [247] Ganymede possesses its own, substantial magnetic field – the first satellite known to ...
The solar system's largest moon, Ganymede, which orbits the largest planet, Jupiter, was hit by an asteroid four billion years ago that shifted the gas giant's satellite on its axis, new research ...
Relationship of the atmosphere and ionosphere. The ionosphere (/ aɪ ˈ ɒ n ə ˌ s f ɪər /) [1] [2] is the ionized part of the upper atmosphere of Earth, from about 48 km (30 mi) to 965 km (600 mi) above sea level, [3] a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar ...
Scientists studying the zone between Earth’s atmosphere and space have spotted unusual X- and C-shaped features that could thwart signals that keep our planet running smoothly.
Mercury, Ceres and several large natural satellites, such as the Moon, Europa, and Ganymede, have exospheres without a denser atmosphere underneath, [3] referred to as a surface boundary exosphere. [4] Here, molecules are ejected on elliptic trajectories until they collide with the surface. Smaller bodies such as asteroids, in which the ...
Greek; where Ganymede was abducted by Zeus disguised as an eagle. WGPSN: Dukug Sulcus: 385: 1985: Sumerian holy cosmic chamber of the gods. WGPSN: Elam Sulci: 1,855: 1985: Ancient Babylonian seat of sun worship, in present-day Iran. WGPSN