Observations and Quantitative Compositional Analysis of Ceres, Pallas, and Hygiea Using JWST/NIRSpec: https://iopscience.iop.org/article/10.3847/PSJ/ad944c -> "We present JWST Near Infrared Spectrograph (NIRSpec) measurements of the three largest low-albedo main-belt #asteroids: (1) Ceres, (2) Pallas, and (10) Hygiea. Their reflectance spectra all have very similar absorptions centered near 2.72 μm attributed to Mg–OH in minerals."