What molecule's potential detection on K2-18b has raised scientific excitement as a possible biosignature?

Answer

Dimethyl sulfide (DMS)

Observations of K2-18b revealed carbon-bearing molecules and a potential detection of dimethyl sulfide (DMS), which on Earth is overwhelmingly associated with biological processes.

What molecule's potential detection on K2-18b has raised scientific excitement as a possible biosignature?

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