Low upper limit to methane abundance on Mars

Keyphrases

• Mars 100%
• Methane 100%
• Methane Abundance 100%
• Parts per Billion 100%
• Confidence Level 33%
• Microbial Activity 33%
• Biological Activity 33%
• Plume 33%
• In Situ Measurements 33%
• Martian Atmosphere 33%
• Atmospheric Methane 33%
• Telescopic Observations 33%
• Non-biological 33%
• Spectral Patterns 33%
• Mars Orbit 33%
• Tunable Laser 33%
• Laser Spectrometer 33%

Earth and Planetary Sciences

• Methane 100%
• Atmospherics 20%
• Microbial Activity 20%
• Biological Activity 20%
• In Situ Measurement 20%
• Martian Atmosphere 20%
• Tunable Laser 20%

Physics

• Methane 100%
• Atmospherics 20%
• Martian Atmosphere 20%
• In Situ Measurement 20%
• Laser Spectrometer 20%
• Tunable Laser 20%