Bean's group designed, built, and operates MAROON-X, a fiber-fed, high-dispersion precision radial-velocity spectrograph on the 8m Gemini-North telescope, achieving sub-m/s-class radial-velocity precision to detect and mass-characterize small planets around nearby M dwarfs and to identify/refine targets for JWST atmospheric spectroscopy. This is an astronomy pivot from quantum sensing in the sense the filter intends: a purpose-built, cutting-edge-sensitivity spectrograph (rather than a quantum sensor per se) enabling detection at the edge of instrumental precision.

Birkby uses the world's largest telescopes and highest-resolution spectrographs to determine the composition and dynamics of exoplanet atmospheres via high-resolution cross-correlation spectroscopy, as ERC Starting Grant PI of the 'exoZoo' project, with a longer-term goal of surveying nearby terrestrial exoplanets with future Extremely Large Telescopes.

Madhusudhan pioneered inverse 'atmospheric retrieval' techniques to determine the chemical composition, interior structure and formation history of exoplanets from their spectra, including recent JWST-based investigations of potential biosignature gases on temperate sub-Neptunes (Hycean worlds).

NON-PREFERRED (astronomy pivot, kept for review). Seager's group works on exoplanet atmosphere and interior characterization and the search for atmospheric biosignature gases, including leadership of space-mission concepts (Starshade, ASTERIA, TESS deputy science direction) that require high-contrast, high-resolution spectroscopic instrumentation; per public reporting she is departing MIT for the University of Toronto/CITA effective September 1, 2026, so any postdoc search should confirm her host institution directly.