A possible sign of life on K2-18b?

[AndrewW]

A possible sign of life on K2-18b?
Is this the first sign of some uplifted dolphins or whales? (water world)

 

[Tom B]

If it is a biosignature, then it's primitive life (algae?) which the krill feed on which the dolphins & whales eat.

 

[Sigtrygg]

It is not a life sign.

It is a group of scientists putting out a press release for publicity.

 

[GabrielGABFonseca]

I'm willing to bet one (1) Gregg's Sausage Roll that within nine months we will know of at least one abiotic/inorganic process which generates these exact same biosignatures.

This is just Venus Phosphine II: Electric Boogaloo.

 

[Sigtrygg]

I claim that sausage roll...
Abstract, sept 24
"Through laboratory photochemical experiments, we show the abiotic production of organosulfur gases, including DMS, OCS, methane thiol (CH 3 SH), ethane thiol (C 2 H 5 SH), CS 2, and ethyl methyl sulfide (CH 3 CH 2 SCH 3 ) via photochemistry in analog atmospheres"

https://www.researchgate.net/publication/384260531_Abiotic_Production_of_Dimethyl_Sulfide_Carbonyl_Sulfide_and_Other_Organosulfur_Gases_via_Photochemistry_Implications_for_Biosignatures_and_Metabolic_Potential