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Mars methane detection and variability at Gale crater
Curiosity confirms the presence and variability of atmospheric methane, implying episodic production from an unknown source, and reports of plumes or patches of methane in the martian atmosphere that vary over monthly time scales have defied explanation.
Organic molecules in the Sheepbed Mudstone, Gale Crater, Mars
Chlorinated hydrocarbons identified in the Sheepbed mudstone by SAM are the reaction products of Martian chlorine and organic carbon derived from Martian sources or exogenous sources such as meteorites, comets, or interplanetary dust particles.
Background levels of methane in Mars’ atmosphere show strong seasonal variations
In situ measurements at Gale crater made over a 5-year period by the Tunable Laser Spectrometer on the Curiosity rover show large seasonal variation in the background and occurrences of higher temporary spikes that are consistent with small localized sources of methane released from martian surface or subsurface reservoirs.
Evidence for indigenous nitrogen in sedimentary and aeolian deposits from the Curiosity rover investigations at Gale crater, Mars
- J. Stern, B. Sutter, P. Mahaffy
- Environmental ScienceProceedings of the National Academy of Sciences
- 23 March 2015
The detection of nitrate in both wind-drifted fines (RN) and in mudstone (JK, CB) is likely a result of N2 fixation to nitrate generated by thermal shock from impact or volcanic plume lightning on ancient Mars.
Transient liquid water and water activity at Gale crater on Mars
Liquid water on equatorial Mars is inconsistent with large-scale climatic conditions. Humidity and temperature measurements by the Curiosity rover support the formation of subsurface liquid brines by…
Seasonal Variations in Atmospheric Composition as Measured in Gale Crater, Mars
- M. Trainer, M. Wong, M. Zorzano
- Environmental Science, PhysicsJournal of Geophysical Research: Planets
- 1 November 2019
The Sample Analysis at Mars (SAM) instrument onboard the Mars Science Laboratory Curiosity rover measures the chemical composition of major atmospheric species (CO2, N2, 40Ar, O2, and CO) through a…
Habitability: A Review.
This review on habitability defines it as the ability of an environment to support the activity of at least one known organism and adopts a binary definition of "habitability" and a "habitable environment".
Oxidation of manganese in an ancient aquifer, Kimberley formation, Gale crater, Mars
The Curiosity rover observed high Mn abundances (>25 wt % MnO) in fracture‐filling materials that crosscut sandstones in the Kimberley region of Gale crater, Mars. The correlation between Mn and…
Possible physical and thermodynamical evidence for liquid water at the Phoenix landing site
 The objective of the Phoenix mission is to determine if Mars' polar region can support life. Since liquid water is a basic ingredient for life, as we know it, an important goal of the mission is…
REMS: The Environmental Sensor Suite for the Mars Science Laboratory Rover
The Rover Environmental Monitoring Station (REMS) will investigate environmental factors directly tied to current habitability at the Martian surface during the Mars Science Laboratory (MSL) mission.…