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| Astrooceanography ： ウィキペディア英語版 |
Astrooceanography
Astrooceanography is the study of oceans outside planet Earth. Unlike the other planetary sciences like Astrobiology, Astrochemistry and Astrogeology, it only actually began after the discovery of underground oceans in Saturn's Titan〔http://science.nasa.gov/science-news/science-at-nasa/2012/28jun_titanocean/〕 and Jupiter's Ganymede.〔http://www.washingtonpost.com/news/speaking-of-science/wp/2015/03/12/theres-an-underground-ocean-on-jupiters-largest-moon/〕
This field remains speculative until further missions reach the oceans beneath the rock or ice layer of the moons. There are many theories related to celestial bodies in our solar system, from oceans made of diamond in Neptune to a gigantic ocean of liquid hydrogen that may exist underneath Jupiter's surface.〔http://listverse.com/2015/04/03/10-mind-boggling-oceans-that-exist-in-space/〕〔http://science.nasa.gov/science-news/science-at-nasa/2011/09aug_juno3/〕
Astrooceanography is closely related to Astrobiology, as oceans are expected to have higher chances to house simple forms of life.
== References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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