David Sing is the Bloomberg Distinguished Professor of Earth and Planetary Sciences at Johns Hopkins University and a leading researcher in exoplanet-atmosphere transmission-spectroscopy. He was the principal investigator and senior author on the Science (May 21, 2026) study that resolved the first confirmed daily weather cycle on an exoplanet, the hot-jupiter wasp-94ab, with lead author sagnick-mukherjee (src-jwst-wasp-94ab-weather-cycle-2026-05).
He has long described clouds as a central obstacle to exoplanet atmospheric characterization — “a thorn in our side” — and the limb-resolved jwst technique demonstrated on WASP-94Ab offered a way around the problem by isolating the planet’s clear evening limb.
Notable Quote
Clouds are “a thorn in our side … like trying to look at the planet through a foggy window.”