Mars Exhumes Methane on Seasonal Cycle, Curiosity Reveals; Rover Also Detects Ancient Organic Matter (IMAGE)
Caption
の図は地表下のメタンが地表へ移動する様子を示したもの。そこで取込と放出が行われることにより、キュリオシティで観測されたような大気の大きな季節変動が生じるものと考えられる。 This material relates to a paper that appeared in the June 8, 2018, issue of Science, published by AAAS. The paper, by C.R. Webster at NASA Jet Propulsion Laboratory in Pasadena, Calif., and colleagues was titled, "Background levels of methane in Mars' atmosphere show strong seasonal variations."
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NASA/JPL-Caltech
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