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Mare Crisium

 

 
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Mare Crisium (the "sea of crises") is a lunar mare
Lunar mare

The lunar maria are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions. They were dubbed maria, Latin for "seas", by early astronomers who mistook them for actual seas....
 located in the Moon
Moon

The Moon is Earth's only natural satellite and the List of natural satellites by diameter satellite in the Solar System. The average centre-to-centre distance from the Earth to the Moon is km, about thirty times the diameter of the Earth....
's Crisium basin, just northeast of Mare Tranquillitatis
Mare Tranquillitatis

Mare Tranquillitatis is a lunar mare that sits within the Tranquillitatis basin on the Moon. The mare material within the basin consists of basalt in the intermediate to young age group of the Upper Imbrian epoch....
. This basin is of the Pre-Imbrian
Lunar geologic timescale

The lunar geological timescale divides the history of Earth's Moon into five generally recognized periods: the Copernican period, Eratosthenian, Imbrian , Nectarian, and Pre-Nectarian....
 period, 4.55 to 3.85 billion years ago. This mare is 376 miles (605 km) in diameter, and 176,000 km2 in area. It has a very flat floor, with a ring of wrinkled ridge toward its outer boundaries. Ghost craters, craters that have largely been buried under deposits of other material, are located to the south.






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Mare Crisium (the "sea of crises") is a lunar mare
Lunar mare

The lunar maria are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions. They were dubbed maria, Latin for "seas", by early astronomers who mistook them for actual seas....
 located in the Moon
Moon

The Moon is Earth's only natural satellite and the List of natural satellites by diameter satellite in the Solar System. The average centre-to-centre distance from the Earth to the Moon is km, about thirty times the diameter of the Earth....
's Crisium basin, just northeast of Mare Tranquillitatis
Mare Tranquillitatis

Mare Tranquillitatis is a lunar mare that sits within the Tranquillitatis basin on the Moon. The mare material within the basin consists of basalt in the intermediate to young age group of the Upper Imbrian epoch....
. This basin is of the Pre-Imbrian
Lunar geologic timescale

The lunar geological timescale divides the history of Earth's Moon into five generally recognized periods: the Copernican period, Eratosthenian, Imbrian , Nectarian, and Pre-Nectarian....
 period, 4.55 to 3.85 billion years ago. This mare is 376 miles (605 km) in diameter, and 176,000 km2 in area. It has a very flat floor, with a ring of wrinkled ridge toward its outer boundaries. Ghost craters, craters that have largely been buried under deposits of other material, are located to the south.

A soil sample from Mare Crisium was successfully brought to Earth on 22 August 1976 by the Soviet lunar mission Luna 24
Luna 24

Luna 24 was an unmanned space mission of the Luna program, also called Lunik 24. The last of the Luna series of spacecraft, the mission of the Luna 24 probe was the third Soviet mission to retrieve Lunar soil samples ....
.

The crater has many notable features in and around it. The cape-like feature protruding into the southeast of the mare is Promontorium Agarum. On the western rim of the mare is the palimpsest
Palimpsest

A palimpsest is a manuscript page from a scroll or book that has been scraped off and used again. The word "palimpsest" comes through Latin from Greek language pa??? + ?a? = , and meant "scraped again." Ancient Rome wrote on Wax tablet that could be smoothed and reused, and a passing use of the rather bookish term "palimpsest" by Cicero se...
 Yerkes
Yerkes (crater)

Yerkes is a moon Impact crater near the western edge of Mare Crisium. In the past the interior of this crater has been almost completely inundated by lava, leaving only a shallow remnant of a rim above the Lunar mare....
. The crater
Impact crater

In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with larger body....
 Picard
Picard (crater)

Picard is a moon impact crater that lies in the western part of the Mare Crisium. To the west is the almost completely flooded crater Yerkes . Due east of Picard is the tiny Curtis ....
 is located just to the east of Yerkes, and northwest of Picard is the crater Peirce
Peirce (crater)

Peirce is a small moon Impact crater that lies in the western part of Mare Crisium. That dark, circular lunar mare is located in the east-northeasterly part of the Moon's near side....
. Mare Anguis
Mare Anguis

Mare Anguis is a lunar mare located on the near side of the Moon, about 150 miles in diameter. Located within the Crisium basin, Mare Anguis is a part of the Nectarian System, meaning that it was formed during the Nectarian time period....
 can be seen northeast of Mare Crisium. Mare Crisium is the site of the Luna 15
Luna 15

Luna 15 was an unmanned space mission of the Luna program, also called Lunik 15.Luna 15 was a last minute Soviet Union attempt to steal some of Apollo 11's publicity by being the first mission to return lunar soil to Earth....
 crash in 1969.