In 2015, the Hubble Space Telescope detected a strange feature in the skies over Neptune—a swirling dark vortex the size of China. Packing copious amounts of hydrogen sulfide—the chemical ingredient that gives farts their awful smell—this storm is not behaving as astronomers predicted, with the latest results…
Source: Gizmodo – Neptune’s Stinky Dark Vortex Is Fading Away Like a Bad Fart