Glossary term: 바다
Description: 라틴어로 ‘바다’ 를 뜻하는 마레(mare) 는 현무암으로 이루어진 달의 어두운 평평한 지역 을 말합니다. 이 지역은 오래전 화산 폭발로 생겨난 것 으로 추정되며, 밝고 거칠고 오래된 달의 고지대에 비해 매끄럽고 평평한 지형 을 가지고 있습니다. ‘마레’라는 이름은 물이 가득한 바다처럼 보이는 외형 에서 유래했지만, 현재 우리는 이곳이 물 한 방울 없는 매우 건조한 지역 임을 알고 있습니다.
그중에서도 마레 트란퀼리타티스(Mare Tranquillitatis, 고요의 바다) 는 인류 최초의 달 착륙선, 아폴로 11호가 착륙한 장소 로 유명합니다.
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
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Moon map from the NASA Clementine mission
Caption: A map of the Moon's surface constructed of images taken by the BMDO/NASA Clementine mission. The center of the image corresponds roughly to the center of the full moon. This map is a projection of the spherical moon onto a flat surface so the regions around the poles appear distorted, just as Antarctica appears distorted on a map of the Earth.
The large, dark patches in the center of the image are maria (singular mare). These are named after the Latin word for sea but they are not oceans like we have on Earth. Instead they are vast plains of basalt formed by lava that flowed out of volcanos on the moon billions of years ago. They appear darker and smoother than the older, lighter lunar highlands.
Credit: USGS Astrogeology Science Center;
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License: PD Public Domain icons
Mare Crisium - Sea of Crises
Caption: The image shows the lunar Mare Crisium, the “Sea of Crises,” as seen by NASA’s Lunar Reconnaissance Orbiter in 2015. The photo size is 750 × 750 km, about the size of Germany. Mare Crisium is located in the Moon’s Crisium basin, near the great Mare Tranquillitatis on the near side of the Moon. It is visible from Earth and is characterized by a relatively smooth and flat surface surrounded by cliffs and highlands. The basin that now contains the Mare Crisium was formed by a massive impact event likely during the Nectarian period approximately 3.9 billion years ago. During this time in lunar history, major basins including the Crisium basis were formed by large impact events. Later in lunar history, the basin was flooded by lava to form the dark and flat plain we see today. Its floor is about 1.8 kilometers below the typical lunar surface level. The study of lunar maria provides insights into the volcanic history and impact processes that have affected the Moon and other celestial objects.
Credit: NASA, Lunar Reconnaissance Orbiter
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License: PD Public Domain icons
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