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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
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.
The book describes Ganymede as having about 1 ⁄ 3 Earth gravity but in reality it is only about 1 ⁄ 7. Heinlein also postulated that the surface of Ganymede was volcanic rock like the Moon . Subsequent discoveries have shown that Ganymede's crust is actually almost 90 percent ice or frost, covering a subsurface ocean.
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 ...
1036 Ganymed, provisional designation 1924 TD, is a stony asteroid on a highly eccentric orbit, classified as a near-Earth object of the Amor group.It was discovered by German astronomer Walter Baade at the Bergedorf Observatory in Hamburg on 23 October 1924, and named after Ganymede from Greek mythology.
Here's where cold, snow and storms are forecast. Jeanine Santucci. Updated November 23, 2024 at 2:44 PM. ... but if the storm ends up going farther south and off the Carolina coast, it would be ...
Articles relating to Ganymede and his depictions. He is a divine hero whose homeland was Troy . Homer describes Ganymede as the most beautiful of mortals, abducted by the gods, to serve as Zeus's cup-bearer in Olympus .
As for what playing Callas has taught her, Jolie related to the opera diva’s complicated relationship to fame. “There’s often too much focus today on celebrity, so you almost hide from the ...