# Microbes below the surface.

> Still possible: Microbes below the surface.

Source: https://mysteriesdept.com/mysteries/mars-methane/answers/ANS0D7EY3T60CS7/microbes-below-the-surface  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Mars methane puzzle](https://mysteriesdept.com/mysteries/mars-methane)[If the methane is real, where does it come from?](https://mysteriesdept.com/mysteries/mars-methane/questions/QST0D7EXXF26RFA/if-the-methane-is-real-where-does-it-come-from)Answer

Answer · Mars methane puzzle

# Microbes below the surface.

Microbes below the surface.

**Still possible** Answers **1** questionPublished0

## Where it stands

**Still possible** Its tests haven't settled it: one piece of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- Isotopically light methane; release varying with subsurface conditions.

## What would rule it out

- Isotopic signature or co-emitted gases exclusive to abiotic processes.

## Evidence 1 for · none against

[There is no evidence of life on the surface; microbes might reside beneath it.](https://mysteriesdept.com/mysteries/mars-methane/evidence/EVD0D7EY4206GZS/there-is-no-evidence-of-life-on-the-surface-microbes-might)

Speculative

FOR

## The questions it answers

[If the methane is real, where does it come from?](https://mysteriesdept.com/mysteries/mars-methane/questions/QST0D7EXXF26RFA/if-the-methane-is-real-where-does-it-come-from)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). Microbes below the surface. [Answer ANS0D7EY3T60CS7]. https://mysteriesdept.com/r/ANS0D7EY3T60CS7
```

Key

**ANS** 0D7EY3T60CS7

Kind

Answer · hypothesis

Origin

Published

Version

1

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