Detection of methane in the martian atmosphere: evidence for life?

By V. Krasnopolsky, J. Maillard, Tobias Owen. 2004

556 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Environmental Chemistry

View Paper: https://www.semanticscholar.org/paper/e4cbd2b9a496b3cf9300c6730fdcb8a7c1c5c4d0

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Citations in the corpus

Outgassing History and Escape of the Martian Atmosphere and Water Inventory (2015, methodology): “…from both Earth and spacecraft in orbit around Mars (Planetary Fourier Spectrometer (PFS) on Mars Express, Thermal Emission Spectrometer (TES) on Mars Global Surveyor (MGS)) at an average ∼10–20 ppb level (Krasnopolsky et al. 2004; Formisano et al. 2004; Mumma et al. 2009; Fonti and Marzo 2010).”
Is there methane on Mars (2010, background): “The least compromised of the published datasets are also of the 12CH4 ν3 R0 and R1 lines, but taken in redshift when Mars was receding from Earth in 2006.”
The Sample Analysis at Mars Investigation and Instrument Suite (2012, background): “2004) or ground based high resolution infrared spectroscopy (Krasnopolsky et al. 2004; Mumma et al. 2009)”
Have olivine, will gas: Serpentinization and the abiogenic production of methane on Mars (2005, background): “[2] Recent detection of CH4 in the Martian atmosphere [Formisano et al., 2004] has suggested that methanogenic microbes [Krasnopolsky et al., 2004], thermal decomposition of buried organic material, comet and meteor impacts [Kress and McKay, 2004], mantle plumes, or hydrothermal alteration of…”
Methane clathrate hydrates as a potential source for martian atmospheric methane (2007, background): “volcanism or areas of significant heat on Mars (Krasnopolsky et al., 2004).”
The Atmospheric Chemistry Suite (ACS) of Three Spectrometers for the ExoMars 2016 Trace Gas Orbiter (2018, background): “TGO is a project initiated by the European Space Agency (ESA): it was conceived to carry a powerful set of atmospheric instruments to establish a detailed inventory of the trace gases existing in the Martian atmosphere as a response to the putative presence of methane, initially reported by the FKM ”
THE MARTIAN ATMOSPHERIC BOUNDARY LAYER (2011, background): “Sensitivity to vapor quantities in the 1–10 ppbv range would be sufficient to resolve water and trace gases at previously observed values [Jakosky, 1985; Krasnopolsky et al., 2004; Encrenaz, 2004].”
Spacecraft Observations of the Martian Atmosphere (2008, background): “Groundbased observations (Krasnopolsky et al. 2004, Mumma et al. 2004) indicate an 208 Smith A nn u.”
Circular polarization in scattered light as a possible biomarker (2009, unknown): “On Mars, however, there are surface features that indicate the presence of considerable flows of water in the past, and recent results from the Mars Express and other missions show that substantial quantities of water and perhaps even methane are present [32, 33, 34].”
Mapping the methane on Mars (2010, methodology): “2, is consistent with a methane lifetime of 0.6 years (Mumma et al. 2009), which is much shorter than ∼350 years as previously suggested based on photochemical processes (Wong et al. 2003; Krasnopolsky et al. 2004).”
NOMAD, an Integrated Suite of Three Spectrometers for the ExoMars Trace Gas Mission: Technical Description, Science Objectives and Expected Performance (2018, background): “The reports of methane observations from ground-based observatories (Krasnopolsky et al. 2004; Mumma et al. 2009), from space-borne instruments (Fonti and Marzo 2010; Formisano et al. 2004; Geminale et al. 2011), and in-situ (Webster et al. 2015) pose fundamental challenges to our understanding of…”