A Hot Jupiter’s Cloudy Mornings and Clear Evenings Provide Clues to Its Chemistry

An artistic representation of WASP-94A b, a gas giant in the Microscopium constellation, shows how clouds build on the dark side of the planet and are blown to the dayside, where they dissipate. This leaves the morning edge of the planet, where the winds move from nightside to dayside, permanently overcast. Credit: Hannah Robbins/Johns Hopkins University