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MYS0D7EXRJT3793·The Mars methane puzzle

Artifacts 14

Every copy this mystery rests on, each with its own key and its distance from the original.

Document2 steps from object
Curiosity SAM-TLS methane measurements, Gale crater: document
NASA/JPL-Caltech · Public domain (US government work)
Document2 steps from object
Curiosity SAM-TLS methane measurements, Gale crater: document
NASA/JPL-Caltech · Public domain (US government work)
Document2 steps from object
Ground-based infrared spectra of Mars, 2003 (IRTF CSHELL and Keck NIRSPEC): document
Mumma and colleagues · publisher
Document3 steps from object
ExoMars Trace Gas Orbiter solar-occultation spectra (ACS and NOMAD): document
ESA · CC BY-SA 3.0 IGO