What do Uranus's cloud tops have in common with rotten eggs?

What do Uranus's cloud tops have in common with rotten eggs? 04/25/2018 01:49 PM EDT Hydrogen sulfide, the gas that gives rotten eggs their distinctive odor, permeates the upper atmosphere of the planet Uranus -- as has been long debated, but never definitively proven. Based on sensitive spectroscopic observations with the Gemini North telescope, astronomers uncovered the noxious gas swirling high in the giant planet's cloud tops. This result resolves a stubborn, long-standing mystery of one of our neighbors in space. Full story at https://www.gemini.edu/node/21050 Source Association of Universities for Research in Astronomy (AURA) This is an NSF News From the Field item. Follow NSF:  This email was sent using GovDelivery Communications Cloud on behalf of: National Science Foundation Update · 2415 Eisenhower Avenue, Alexandria, VA 22314 · 703-292-5111