# Scope & Boundary Rules (`UnsolvedAstronomy`) ## Four Acceptance Tests 1. **Test A — The Universe Test**: Does a satisfactory answer assert something substantive about an astronomical object, population, event, process, or cosmic history? 2. **Test B — The Generality Test**: Does the question remain scientifically meaningful beyond one routine observation or one arbitrary catalog entry? 3. **Test C — The Settlement Test**: Does the record specify concrete observational, multi-messenger, population-level, laboratory-astrophysics, or theoretical evidence that would discriminate among competing hypotheses? 4. **Test D — The Source Test**: Does an identifiable scientific source explicitly support the uncertainty?