  We propose a spectroscopic probe of the breaking and localization of Cooper
pairs in an atomic Fermi superfluid interacting with a Rydberg impurity. This
is achieved by monitoring the formation of diatomic and triatomic
ultralong-range molecular species in the superfluid across the BCS - Bose
Einstein condensation (BEC) crossover. The triatomic Rydberg molecule in the
BEC regime heralds the trapping of a tightly-bound Cooper pair, reminiscent of
pion capture in nuclear matter, while the breaking of a Cooper pair on the BCS
side by a diatomic Rydberg molecule is evocative of binary-star tidal
disruption by a black hole. Spectroscopy of the Fermi superfluid and Rydberg
molecules allows for an estimation of the Cooper-pair size while the Rydberg
molecule binding energies discern many-body pairing effects.
