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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
The images provide new insights into the chemical composition of two of Jupiter’s moons. Sharpest Earth-based images of Europa and Ganymede reveal their icy landscape Skip to main content
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 ...
The images, taken on March 22, 2023, and released Wednesday, showcase different dynamic aspects of the sun, including the movements of its magnetic field and the glow of the ultrahot solar corona ...
Image of the Sun's cell-like surface structures. The visible surface of the Sun, the photosphere, is the layer below which the Sun becomes opaque to visible light. [77] Photons produced in this layer escape the Sun through the transparent solar atmosphere above it and become solar radiation, sunlight.
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: Erech Sulcus
A radio-science experiment analyzed Ganymede's gravitational field and internal structure. The instruments detected evidence of a self-generated magnetosphere around the moon. G2 260 (161) 6 September 1996 A Ganymede gravity-assist put Galileo into coplanar orbit with other Galilean satellites, permitting subsequent encounters with them. A ...