Theoretical command
Probe command of biosignature theory: abiotic versus biotic organic distinctions, isotopic fractionation, chirality, habitability modelling, and COSPAR planetary protection categories relevant to Mars or icy moon targets.
Evidence to listen for
- Explains the underlying theory at the level the role demands, and can go a layer deeper when pushed
- Knows which results are established and which are contested
- Distinguishes their own contribution from the field's
- Comfortable saying where the theory runs out
Five-point scoring guide
Recites terminology without understanding; cannot go one layer deeper.
Surface familiarity; conflates established results with speculation.
Solid grasp of the core theory; thin at the frontier.
Strong command; separates settled results from open questions.
Argues false-positive and false-negative biosignature cases with named literature, and states detection limits and confidence thresholds precisely.