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In 2017, Dawn confirmed that Ceres has a transient atmosphere of water vapour. [106] Hints of an atmosphere had appeared in early 2014, when the Herschel Space Observatory detected localised mid-latitude sources of water vapour on Ceres, no more than 60 km (40 mi) in diameter, which each give off approximately 10 26 molecules (3 kg) of water ...
The geology of Ceres is the scientific study of the surface, crust, and interior of the dwarf planet Ceres. It seeks to understand and describe Ceres' composition, landforms, evolution, and physical properties and processes. The study draws on fields such as geophysics, remote sensing, geochemistry, geodesy, and cartography (see Planetary ...
The mid-montane forest grows on the western slopes of the Sierra Nevada at moderate elevations. North of Lake Tahoe, the mid-montane forest occurs from 3,000 to 6,000 feet (900 to 1,800 m). Between Tahoe and Yosemite, the forest ranges from 4,000 to 6,000 feet (1,200 to 1,800 m), while south of Yosemite, it occurs between 5,000 to 7,000 feet ...
Bright spots on Ceres. Several bright surface features (also known as faculae) were discovered on the dwarf planet Ceres by the Dawn spacecraft in 2015. The brightest cluster of spots ("Spot 5") is located in an 80-kilometer (50 mi) crater called Occator. [1][2] The largest and brightest component of the cluster is in the center of the crater ...
Mount Tallac above Lake Tahoe. There are several notable geographical features in the Sierra Nevada: Lake Tahoe is a large, clear freshwater lake in the northern Sierra Nevada, with an elevation of 6,225 ft (1,897 m) and an area of 191 sq mi (490 km 2). [24] Lake Tahoe lies between the main Sierra and the Carson Range, a spur of the Sierra. [24]
Meteorologists predict as much as 10 feet (3 meters) of snow is possible in the mountains around Lake Tahoe by the weekend, with 3 to 6 feet (0.9 to 1.8 meters) in the communities on the lake’s ...
Lake Tahoe (/ ˈ t ɑː h oʊ /; Washo: Dáʔaw) is a freshwater lake in the Sierra Nevada of the Western United States, straddling the border between California and Nevada.Lying at 6,225 ft (1,897 m) above sea level, Lake Tahoe is the largest alpine lake in North America, [4] and at 122,160,280 acre⋅ft (150.7 km 3) it trails only the five Great Lakes as the largest by volume in the United ...
Dawn is a retired space probe that was launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt: Vesta and Ceres. [1] In the fulfillment of that mission—the ninth in NASA's Discovery Program — Dawn entered orbit around Vesta on July 16, 2011, and completed a 14-month survey ...