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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 ...
e. The geology of solar terrestrial planets mainly deals with the geological aspects of the four terrestrial planets of the Solar System – Mercury, Venus, Earth, and Mars – and one terrestrial dwarf planet: Ceres. Earth is the only terrestrial planet known to have an active hydrosphere. Terrestrial planets are substantially different from ...
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 ...
An aerial view of Lake Tahoe's Emerald Bay. High temperatures in the Tahoe area Friday and Saturday will be about 15 to 20 degrees below seasonal averages, forecasters say. (Brian van der Brug/Los ...
Craters. Ceres is saturated with impact craters.Many have a central pit or bright spot. In the first batch of 17 names approved by the IAU, craters north of 20° north latitude had names beginning with A–G (with Asari being the furthest north), those between 20° north and south latitude beginning with H–R, and those further south beginning with S–Z (with Zadeni being the furthest south).
A study of 38 lakes and reservoirs in 23 countries found that Lake Tahoe had the third-highest concentration of microplastics.
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]