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Mare Tranquillitatis / t r æ ŋ ˌ k w ɪ l ɪ ˈ t eɪ t ɪ s / (Latin for Sea of Tranquillity or Sea of Tranquility) [a] is a lunar mare that sits within the Tranquillitatis basin on the Moon. It contains Tranquility Base , the first location on another celestial body to be visited by humans.
The Mare Tranquillitatis pit is the name given to an elliptical opening on the Moon's surface in the Mare Tranquillitatis, situated roughly 400 kilometers (250 miles) away from the landing site of Apollo 11. [1] The pit was created by a lunar lava tube, and is currently the deepest known lunar pit with a radius of at least 100 meters (328 feet).
The surface feature is Mare Tranquillitatis, or the Sea of Tranquility, where the Apollo 11 mission landed on the afternoon of July 20, 1969.
Mare Orientale: Eastern Sea 19.4° S 92.8° W 327 km Mare Serenitatis: Sea of Serenity 28.0° N 17.5° E 707 km Mare Smythii: Sea of William Henry Smyth: 1.3° N 87.5° E 373 km Mare Spumans: Foaming Sea 1.1° N 65.1° E 139 km Mare Tranquillitatis: Sea of Tranquility 8.5° N 31.4° E 873 km Mare Undarum: Sea of Waves 6.8° N 68.4° E 243 km
Lamont is a system of low ridges in the surface of Mare Tranquillitatis that is most likely a submerged impact crater. It was named after Scottish-born German astronomer Johann von Lamont . [ 1 ] It is located to the southeast of the crater Arago .
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 ...
It is named after the Mare Tranquillitatis (Sea of Tranquility), the place on the Moon where the rock samples were found during the 1969 Apollo 11 mission. It was the last mineral brought from the Moon which was thought to be unique, with no counterpart on Earth, until it was discovered in Australia in 2011. [10]
Theophrastus is a small lunar impact crater at the southern part of the Sinus Amoris, a bay at the northeast part of the Mare Tranquillitatis. It was named after ancient Greek philosopher Theophrastus in 1973. [2] It lies to the southeast of the lava-flooded crater Maraldi, and was designated Maraldi M until the IAU gave it its current name.