# Curiosity SAM-TLS methane measurements, Gale crater

> Laser absorption spectra of Martian air drawn into the rover's sample cell, run directly or after enrichment, with the housekeeping data for the…

Source: https://mysteriesdept.com/mysteries/mars-methane/artifacts/ART0D7EY7Z04A03/curiosity-sam-tls-methane-measurements-gale-crater  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Mysteries](https://mysteriesdept.com/mysteries)[Mars methane puzzle](https://mysteriesdept.com/mysteries/mars-methane)[Artifacts](https://mysteriesdept.com/mysteries/mars-methane#artifacts)Curiosity SAM-TLS methane measurements, Gale crater

**ART** 0D7EY7Z04A03·Artifact · recording

# Curiosity SAM-TLS methane measurements, Gale crater

PhotographPublic domainMeasured from 2012; first results December 2014

[Cite][Download](https://mysteriesdept.com/files/d/cbe3617943428cff56c478813d094971528826ee8a20997d1922f62ae5ab1e51)

[![Curiosity SAM-TLS methane measurements, Gale crater: document](https://mysteriesdept.com/files/v/cbe3617943428cff56c478813d094971528826ee8a20997d1922f62ae5ab1e51/w800)](https://mysteriesdept.com/files/cbe3617943428cff56c478813d094971528826ee8a20997d1922f62ae5ab1e51.jpg)

Curiosity SAM-TLS methane measurements, Gale crater: document

[![Curiosity SAM-TLS methane measurements, Gale crater: document](https://mysteriesdept.com/files/v/cbe3617943428cff56c478813d094971528826ee8a20997d1922f62ae5ab1e51/w800)][![Curiosity SAM-TLS methane measurements, Gale crater: document](https://mysteriesdept.com/files/v/9892206454d092ceed0089a77ab8bd208f2b706db057f96c64a53b95e6ec9b7d/w800)]

Laser absorption spectra of Martian air drawn into the rover's sample cell, run directly or after enrichment, with the housekeeping data for the foreoptics chamber. The record holds the background of about 0.4 ppbv, the four readings averaging 7.2 ppbv in 2013 to 2014 and the 20.5 ppbv reading of June 2019; every claim and every challenge rests on these spectra.

NASA/JPL-Caltech, 2012. Public domain

## Copies 3

**Dataset** SAM team, NASA Goddard and JPL · pds-geosciences.wustl.edu · 2012/2026 · Public domain (US government work)Primary source: [PDS Geosciences Node: MSL Sample Analysis at Mars (SAM) data](https://mysteriesdept.com/sources/SRC0D7EXQBR2TSS/pds-geosciences-node-msl-sample-analysis-at-mars-sam-data)1 step from the original

[Where it's published](https://pds-geosciences.wustl.edu/missions/msl/sam.htm)

**Document** NASA/JPL-Caltech · images.nasa.gov · 2014-12-16 · Public domain (US government work)Primary source: [Methane Measurements by NASA's Curiosity in Mars' Gale Crater, PIA19087](https://mysteriesdept.com/sources/SRC0D7EXRJT4D1B/methane-measurements-by-nasas-curiosity-in-mars-gale-crater)2 steps from the original

[Where it's published](https://images.nasa.gov/details/PIA19087)[Download](https://mysteriesdept.com/files/d/cbe3617943428cff56c478813d094971528826ee8a20997d1922f62ae5ab1e51)

**Document** NASA/JPL-Caltech · images.nasa.gov · 2018-06-07 · Public domain (US government work)Primary source: [Mars' Mysterious Methane, PIA22328](https://mysteriesdept.com/sources/SRC0D7EXRTM59KZ/mars-mysterious-methane-pia22328)2 steps from the original

[Where it's published](https://images.nasa.gov/details/PIA22328)[Download](https://mysteriesdept.com/files/d/9892206454d092ceed0089a77ab8bd208f2b706db057f96c64a53b95e6ec9b7d)

## Sources 2

- [Background levels of methane in Mars' atmosphere show strong seasonal variations](https://mysteriesdept.com/sources/SRC0D7EXME03TED/background-levels-of-methane-in-mars-atmosphere-show-strong)_SRC_
- [Mars methane detection and variability at Gale crater](https://mysteriesdept.com/sources/SRC0D7EXM667PXG/mars-methane-detection-and-variability-at-gale-crater)_SRC_

## Cite it

```
Mysteries Department. (2026). Curiosity SAM-TLS methane measurements, Gale crater [Artifact ART0D7EY7Z04A03]. https://mysteriesdept.com/r/ART0D7EY7Z04A03
```

Key

**ART** 0D7EY7Z04A03

Kind

Recording

Held by

NASA Planetary Data System, Geosciences Node (SAM data); JPL (TLS team)

Dated

measured from 2012; first results December 2014; seasonal background cycle published June 2018

Licence

Public domain (US government work)

Part of

[Mars methane puzzle](https://mysteriesdept.com/mysteries/mars-methane)

The record

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[JSON](https://mysteriesdept.com/api/v1/records/ART0D7EY7Z04A03)