Astronomers found Uranus planet atmosphere with noxious gas, which produces a smell like rotten eggs as it has a weird odor. The gas permeates the smell all over the top of the atmosphere above the planet.  The discovery has long been in the controversies, but didn’t prove itself conclusively, which recently probed by the astronomers through the spectroscopic observations using Gemini North telescope.

New findings that proposed a chemical composition of upper atmosphere of the Uranus planet for the first time have been disclosed in the journal Nature Astronomy on Monday. During the research, the team discovered an odiferous gas known as hydrogen sulfide (H2S) at the top portion of the planet’s atmosphere.

Leigh Fletcher, study’s co-author from the University of Leicester in England said that, “Only a tiny amount remains above the clouds as a saturated vapor. And this is why it is so challenging to capture the signatures of ammonia and hydrogen sulfide above cloud decks of Uranus. The superior capabilities of Gemini finally gave us that lucky break.”

With the help of Near-Infrared Integral Field Spectrometer (NIFS), an optical instrument that combines imaging capabilities and spectrographic at the Gemini North telescope in Hawaii, the researchers analyzed the cloud cover of the planet composed from the hydrogen sulfide gas that gives noxious, rotten eggs scent.

Patrick Irwin from the University of Oxford said in a statement that, “If an unfortunate human were ever to descend through Uranus’s clouds, they would be met with very unpleasant and odiferous conditions.”