Answer · Mars methane puzzle
Methane is present near the surface at Gale at a background of a few tenths of a ppbv, with occasional…
Methane is present near the surface at Gale at a background of a few tenths of a ppbv, with occasional releases of several to tens of ppbv.
Where it stands
DisputedFour pieces of evidence for, two against. It needs two reviews to be accepted.
What it predicts
- Repeated measurements reproduce the background and its day-night difference.
- Methane in the sample cell does not track methane in the foreoptics chamber.
- A second, independent instrument at the surface measures similar values.
What would rule it out
- The two-step leak test, or any controlled experiment, showing that methane in the sample cell follows the foreoptics chamber.
Evidence 4 for · 2 against
FOR
FOR
AGAINST
The questions it answers
Open3 answers, none ahead
Cite it
Mysteries Department. (2026). Methane is present near the surface at Gale at a background of a few tenths of a ppbv, with occasional… [Answer ANS0D7EXXYP7TFK]. https://mysteriesdept.com/r/ANS0D7EXXYP7TFK
@misc{mysteriesdept_ans0d7exxyp7tfk,
title = {Methane is present near the surface at Gale at a background of a few tenths of a ppbv, with occasional…},
author = {{Mysteries Department}},
year = {2026},
note = {Answer, catalog key ANS0D7EXXYP7TFK},
url = {https://mysteriesdept.com/r/ANS0D7EXXYP7TFK}
}