It's True - Uranus Really Does Stink
If you were ever to stand on the surface of Uranus and take a deep breath, you would get the distinctive pong of rotten eggs (and no oxygen of course).
"but suffocation and exposure in the negative 200 degrees Celsius atmosphere made of mostly hydrogen, helium, and methane would take its toll long before the smell.”
However, a team of astronomers led by Irwin has now found that hydrogen sulphide definitely does permeate the upper atmosphere of Uranus, according to sensitive spectroscopic observations with the Gemini North telescope on Hawaii’s Maunakea.
Irwin and his team used infrared light images capture by the scope’s Near-Infrared Integral Field Spectrometer, which sampled reflected sunlight from a region just over the main visible cloud layer in Uranus’ atmosphere.
https://www.forbes.com/sites/bridaineparnell/2018/04/24/its-true-uranus-really-does-stink/
= new reply since forum marked as read
Now we're gonna' have a full day of "Uranus" jokes! 
