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In addition to mountains, valleys, and impact craters, the following surface features have received names in the Lunar nomenclature, many of them named after a nearby crater or mountain. The listed diameter for these features is the longest dimension that contains the entire geological formation.
The ages of the mare basalts have been determined both by direct radiometric dating and by the technique of crater counting.The radiometric ages range from about 3.16 to 4.2 billion years old (Ga), [4] whereas the youngest ages determined from crater counting are about 1.2 Ga. [5] Updated measurements of samples collected by the Chang’e-5 mission show that some lunar basalts could be as ...
The modern system of lunar nomenclature was introduced in 1651 by Giovanni Battista Riccioli. [1] Riccioli's map of the Moon was drawn by Francesco Maria Grimaldi, who has a crater named after him. A related set of features are the Lunar lacus / ˈ l eɪ k ə s / (singular also lacus, Latin for "lake"), [a] which are smaller basaltic plains of ...
Common features shared by lunar rilles and similar structures on other bodies suggest that common causative mechanisms operate widely in the solar system. Leading theories include lava channels , collapsed lava tubes, near-surface dike intrusion, nuée ardente (pyroclastic cloud), subsidence of lava-covered basin and crater floors, and tectonic ...
Every helpful hint and clue for Saturday's Strands game from the New York Times. ... Move over, Wordle, Connections and Mini Crossword—there's a new NYT word game in town! The New York Times ...
Geological studies of the Moon are based on a combination of Earth-based telescope observations, measurements from orbiting spacecraft, lunar samples, and geophysical data. . Six locations were sampled directly during the crewed Apollo program landings from 1969 to 1972, which returned 382 kilograms (842 lb) of lunar rock and lunar soil to Earth [8] In addition, three robotic Soviet Luna ...
The largest lunar feature in the vicinity of Shioli is the Sea of Nectar, a basin 210 miles (339 kilometers) in diameter that is one of the oldest on the near side of the moon, the hemisphere that ...
Lunar Reconnaissance Orbiter Wide Angle Camera image of Reiner Gamma Another view of Reiner Gamma swirls Mare Ingenii Swirls east of Firsov crater, from Apollo 10. Lunar swirls are enigmatic features found across the Moon's surface, which are characterized by having a high albedo, appearing optically immature (i.e. having the optical characteristics of a relatively young regolith), and (often ...