Trenti combines high-redshift galaxy and gamma-ray-burst science with hands-on space instrumentation: he leads SkyHopper, a 6U CubeSat carrying a cooled near-infrared telescope intended for rapid follow-up of transients and exoplanet transits, which is an unusually complete exercise in building a photon-starved instrument under severe SWaP constraints. The group also works on infrared detector characterisation and on-board autonomy. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — the relevance to a quantum-sensing candidate is the engineering discipline of getting a low-noise detector to work in a hostile, uncontrolled environment — the same problem that separates a laboratory pT/sqrt(Hz) NV magnetometer from a fieldable one. Borderline inclusion on the astronomy criterion; kept because instrumentation is a genuine focus rather than a by-product.

Unruh studies stellar magnetic activity, starspots and irradiance variability and their effect on exoplanet transit and radial-velocity observations, helping to characterise host stars for precise exoplanet measurements.

Warren uses large near-infrared sky surveys (e.g. UKIDSS/VISTA) to discover and characterise high-redshift quasars, cool brown dwarfs and other rare populations, and works on wide-field survey design and statistics.

Webster works on the Epoch of Reionisation with the Murchison Widefield Array, where the science goal — detecting the redshifted 21-cm signal from the first stars — is a five-orders-of-magnitude foreground-subtraction and instrumental-calibration problem rather than an astrophysics problem. Her group's contributions are in foreground modelling, ionospheric and beam calibration, and the statistical detection of a signal buried far below the systematics floor; she also works on quasar accretion physics. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — the methodological parallel is exact: like a pT/sqrt(Hz) NV ensemble measurement, a 21-cm detection lives or dies on the control of correlated systematics rather than on raw sensitivity. Borderline inclusion under the astronomy criterion, kept because the array and its calibration are the central object of study.