Exploring the chemical diversity in the planet-forming zones of disks with JWST

JWST-MIRI observations of protoplanetary disks allow us to probe the gas composition and conditions in the terrestrial planet-forming zones of disks. In the first few years of observations with JWST, we have seen a rich diversity in protoplanetary disk spectra, caused by variations in the chemistry in these disks. Water-rich disks are seen frequently around Sun-like stars, with properties that can tell us about the journey that water takes through these planet-forming regions. Disks around low-mass stars and brown dwarfs, in stark contrast, are extremely carbon-rich, showing a complex chemistry, unlike anything that has been observed before. The sensitivity of JWST is opening new doors to studying the chemical diversity at the time of planet formation.