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The Galilean moons are named after Galileo Galilei, who observed them in either December 1609 or January 1610, and recognized them as satellites of Jupiter in March 1610; [2] they remained the only known moons of Jupiter until the discovery of the fifth largest moon of Jupiter Amalthea in 1892. [3]
Geologic Map of Ganymede (February 11, 2014). This is a list of named geological features, except craters, on Ganymede , a moon of Jupiter . The list is complete as of August 2022.
During the G1 flyby in 1996, Galileo instruments detected Ganymede's magnetic field. [116] Data from the Galileo flybys was used to discover the sub-surface ocean, which was announced in 2001. [23] [40] High spatial resolution spectra of Ganymede taken by Galileo were used to identify several non-ice compounds on the surface. [52]
Map of the Position of the U.S. Geographic Center of Area, Mean Center of Population, and Median Center of Population, 2020 (U.S. Census Bureau) [1] The geographic center of the United States is a point approximately 20 miles (32 km) north of Belle Fourche , South Dakota at 44°58′2.07622″N 103°46′17.60283″W / 44.9672433944°N ...
Galileo Regio: Jg3 21-66° N 90-180° W Philus Sulcus: Jg4 21-66° N 180-270° W Nun Sulci: Jg5 21-66° N 270-360° W Dardanus Sulcus: Jg6 22° N-22° S 0-72° W Memphis Facula: Jg7 22° N-22° S 72-144° W Uruk Sulcus: Jg8 22° N-22° S 144-216° W Tiamat Sulcus: Jg9 22° N-22° S 216-288° W Misharu: Jg10 22° N-22° S 288-360° W Nabu: Jg11 ...
The internal structure of Ganymede. Galileo returned to Ganymede on orbits G7 and G9 in April and May 1997, and on G28 and G29 in May and December 2000 on the GMM. [217] Images of the surface revealed two types of terrain: highly cratered dark regions and grooved terrain sulcus. Images of the Arbela Sulcus taken on G28 made Ganymede look more ...
WASHINGTON (Reuters) -Google Maps will change the name of "Gulf of Mexico" to "Gulf of America" once it is officially updated in the U.S. Geographic Names System, Google said in an X post on ...
Galileo Regio is a large, dark surface feature on Jupiter's moon Ganymede. [1] It is a region of ancient dark material that has been broken apart by tectonism and is now surrounded by younger, brighter material (such as that of Uruk Sulcus) that has been upwelling from Ganymede's interior. It is thought to be some 4 billion years old and is ...