MysteriesMars methane puzzleArtifactsExoMars Trace Gas Orbiter solar-occultation spectra (ACS and NOMAD)
Spectra of sunlight through the atmosphere at sunrise and sunset, sensitive to tens of parts per trillion above a few kilometres. They find no methane, to a limit a twentieth of the rover's background.
ESA, 2018. CC BY-SA 3.0 IGO
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DatasetNOMAD team · archives.esac.esa.int · ESA PSA terms (acknowledge the PI and the PSA)Primary source: ESA Planetary Science Archive: ExoMars 2016 Trace Gas Orbiter (ACS and NOMAD)1 step from the original
DatasetACS team · archives.esac.esa.int · ESA PSA terms (acknowledge the PI and the PSA)Primary source: ESA Planetary Science Archive: ExoMars 2016 Trace Gas Orbiter (ACS and NOMAD)1 step from the original
DocumentESA · commons.wikimedia.org · 2019-04-10 · CC BY-SA 3.0 IGO3 steps from the original
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Cite it
Mysteries Department. (2026). ExoMars Trace Gas Orbiter solar-occultation spectra (ACS and NOMAD) [Artifact ART0D7EYA5A2BZF]. https://mysteriesdept.com/r/ART0D7EYA5A2BZF
@misc{mysteriesdept_art0d7eya5a2bzf,
title = {ExoMars Trace Gas Orbiter solar-occultation spectra (ACS and NOMAD)},
author = {{Mysteries Department}},
year = {2026},
note = {Artifact, catalog key ART0D7EYA5A2BZF},
url = {https://mysteriesdept.com/r/ART0D7EYA5A2BZF}
}