うちゅうくうかん
宇宙空間
1. (outer) spaceAstronomy
2. Outer spaceOuter space, or simply space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles: predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, and neutrinos. Observations and theory suggest that it also contains dark matter and dark energy.
Read “Outer space” on English Wikipedia
Read “宇宙空間” on Japanese Wikipedia
Read “Outer space” on DBpedia
Read “Outer space” on English Wikipedia
Read “宇宙空間” on Japanese Wikipedia
Read “Outer space” on DBpedia
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