A transmission spectrum of WASP-17b — a hot-Jupiter exopanet around 1,300 light-years away — captured by the Mid-Infrared Instrument (MIRI) on the NASA/ESA/CSA James Webb Space Telescope reveals the first evidence for quartz (crystalline silica, SiO2) in the clouds of an exoplanet. An artist’s impression of the hot-Jupiter WASP-17b. Image credit: NASA / ESA / CSA / Ralf Crawford, STScI. WASP-17b is located approximately 1,300 light-years...
