Background levels of methane in Mars' atmosphere show strong seasonal variations.

CR, Webster; PR, Mahaffy; SK, Atreya; JE, Moores; GJ, Flesch; C, Malespin; CP, McKay; G, Martinez; CL, Smith; J, Martin-Torres; J, Gomez-Elvira; MP, Zorzano; MH, Wong; MG, Trainer; A, Steele; D Jr, Archer; B, Sutter; PJ, Coll; C, Freissinet; PY, Meslin; RV, Gough; CH, House; A, Pavlov; JL, Eigenbrode; DP, Glavin; JC, Pearson; D, Keymeulen; LE, Christensen; SP, Schwenzer; R, Navarro-Gonzalez; J, Pla-García; SCR, Rafkin; Á, Vicente-Retortillo; H, Kahanpää; D, Viudez-Moreiras; MD, Smith; AM, Harri; M, Genzer; DM, Hassler; M, Lemmon; J, Crisp; SP, Sander; RW, Zurek; AR, Vasavada

doi:10.1126/science.aaq0131

Public

Background levels of methane in Mars' atmosphere show strong seasonal variations.

Shared by NobleBlocks on Jun 1, 2018 • 12:00 AM UTC

Authors:

Webster CR

Mahaffy PR

Atreya SK

Abstract

Variable levels of methane in the martian atmosphere have eluded explanation partly because the measurements are not repeatable in time or location. We report in situ measurements at Gale crater made over a 5-year period by the Tunable Laser Spectrometer on the Curiosity rover. The background levels...

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