sea of tranquility

     

Mare Tranquillitatis (Latin for Sea of Tranquility) is a lunar mare that sits within the Tranquillitatis basin on Earth's moon. The mare material within the basin consists of basalt in the intermeiate to young age group of the Upper Imbrian epoch. The surrounding mountains are thought to be of the Lower Imbrian epoch, but the actual basin is probably Pre-Nectarian. The basin has irregular margins and lacks a defined multiple-ringed structure. The irregular topography in and near this basin results from the intersection of the Tranquillitatis, Nectaris, Crisium, Fecunditatis, and Serenitatis basins with two throughgoing rings of the Procellarum basin. Palus Somni, on the northeastern rim of the mare, is filled with the basalt that spilled over from Tranquillitatis.

Trivia about sea of tranquility

  • This lunar "sea" was the landing site of Apollo 11's Eagle module
  • "Peaceful" site on the moon where the lunar module touched down
  • The first U.S. spacecraft to hit the visible side of the moon landed in this waterless "sea" in 1964
  • In 1969, National Geographic published a Moon map; here's this calm lunar feature
  • On July 20, 1969 Neil Armstrong took "one small step" onto this "peaceful" lunar sea
  • Ranger 8 hit the moon at this location in 1965, setting up a milestone moment for mankind 4 years later

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