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Canonical Source · peer reviewed study
This page documents how this source is reused across Claim by Claim. A source can support, challenge, qualify or contextualize different claims; appearing here does not imply endorsement of every linked proposition.
Evidence context
Evidence roles describe what this source helps establish inside each Investigation. They are local to that use, not permanent labels attached to the publication itself.
Investigation
High-precision planetary dynamics constrain unseen massive bodies because additional mass changes the measured orbital precessions and trajectories of known planets.
A body passing near the terrestrial-planet region would create much larger perturbations than a remote Planet X configuration.
Investigation
Planetary ephemeris analyses can constrain an undiscovered massive body through the perturbations it would induce in known planetary motions.
A large body repeatedly entering the inner Solar System would be far more dynamically consequential than the distant objects these analyses constrain.
Subject families