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Ganymede's magnetic field is probably created by convection within its core, and influenced by tidal forces from Jupiter's far greater magnetic field. [23] Ganymede has a thin oxygen atmosphere that includes O, O 2, and possibly O 3 . [17] Atomic hydrogen is a minor atmospheric constituent.
Ganymede is composed primarily of silicate rock and water ice, and a salt-water ocean is believed to exist nearly 200 km below Ganymede's surface, sandwiched between layers of ice. [44] The metallic core of Ganymede suggests a greater heat at some time in its past than had previously been proposed.
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
In the Solar System it is the third-largest moon after Ganymede and Saturn's largest moon Titan, and nearly as large as the smallest planet Mercury. Callisto is, with a diameter of 4,821 km , roughly a third larger than Earth's Moon and orbits Jupiter on average at a distance of 1,883,000 km , which is about five times further out than the Moon ...
Get ready for the final full moon of 2024: the Cold Moon. Skywatchers who want to see it at its fullest should be prepared to head out this weekend — the December full moon will reach peak ...
Driven by the jet stream, part of the polar vortex — a large area of cold air that spins over the North Pole in the winter — will drop about 3,000 miles south into the U.S., delivering the ...
Animation of the Laplace resonance of Io, Europa and Ganymede (conjunctions are highlighted by color changes) Europa orbits Jupiter in roughly 3.55 days, with an orbital radius of about 670,900 km. With an orbital eccentricity of only 0.009, the orbit itself is nearly circular, and the orbital inclination relative to Jupiter's equatorial plane ...
Although horses are built to handle cold weather, their extremities, like ears and tails, can be vulnerable to frostbite in extremely low temperatures. Dr. Morton adds, "Frostbite isn’t common ...