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Title: Uranus Smells Like Rotten Eggs
Source: Space.com
URL Source: https://www.space.com/40374-uranus-clouds-smell-rotten-eggs.html
Published: Apr 24, 2018
Author: Mike Wall
Post Date: 2018-04-24 11:54:01 by Willie Green
Keywords: None
Views: 178
Comments: 5

There's a lot of really smelly stuff wafting around Uranus.

The clouds in Uranus' upper atmosphere are composed largely of hydrogen sulfide, the molecule that makes rotten eggs so stinky, a new study suggests.

"If an unfortunate human were ever to descend through Uranus' clouds, they would be met with very unpleasant and odiferous conditions," study lead author Patrick Irwin, of Oxford University in England, said in a statement.

But that wayward pioneer would have bigger problems, he added: "Suffocation and exposure in the negative 200 degrees Celsius [minus 328 degrees Fahrenheit] atmosphere, made of mostly hydrogen, helium, and methane, would take its toll long before the smell."

Researchers have long wondered about the composition of the clouds high up in Uranus' sky — specifically, whether they're dominated by ammonia ice, as at Jupiter and Saturn, or by hydrogen sulfide ice. The answer has proved elusive, because it's tough to make observations with the required detail on distant Uranus. (Not only are Jupiter and Saturn closer to Earth, they have also hosted dedicated orbiter missions. Uranus has been visited just once — a brief flyby by NASA's Voyager 2 probe in January 1986.)

Irwin and his colleagues studied Uranus' air using the Near-Infrared Integral Field Spectrometer (NIFS), an instrument on the 26-foot (8 meters) Gemini North telescope in Hawaii. NIFS scrutinized sunlight reflected from the atmosphere just above Uranus' cloud tops — and spotted the signature of hydrogen sulfide.

"Only a tiny amount remains above the clouds as a saturated vapor," study co-author Leigh Fletcher, from the University of Leicester in England, said in the same statement. "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."

Neptune's clouds are likely similar to those of Uranus, the researchers said. The big difference between the clouds of these two "ice giants" and those of Jupiter and Saturn probably trace to the worlds' formation environments: Uranus and Neptune coalesced much farther from the sun than the two gas giants did. 

"During our solar system’s formation, the balance between nitrogen and sulfur — and hence ammonia and Uranus's newly detected hydrogen sulfide — was determined by the temperature and location of [a] planet’s formation," Fletcher said.

The new study was published online today (April 23) in the journal Nature Astronomy.


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#1. To: Willie Green (#0)

The joke here is just WAY too obvious, so I'm just going to move on.

no gnu taxes  posted on  2018-04-24   12:45:42 ET  Reply   Trace   Private Reply  


#2. To: Willie Green, Y'ALL (#0)

Poor little willy, reduced to making a sophomoric (sophomoronic) post, -- to what point?

tpaine  posted on  2018-04-24   13:43:02 ET  Reply   Trace   Private Reply  


#3. To: Willie Green (#0)

IOW, it smells like ........... democRats.

Hank Rearden  posted on  2018-04-24   13:56:17 ET  Reply   Trace   Private Reply  


#4. To: Willie Green (#0)

Uranus Smells Like Rotten Eggs

Things Obomber and Bubbette! said to George Soros? Followed of course by "But I can lick it!"

In the entire history of the world,the only nations that had to build walls to keep their own citizens from leaving were those with leftist governments.

sneakypete  posted on  2018-04-24   17:26:22 ET  Reply   Trace   Private Reply  


#5. To: Willie Green (#0)

could that be some left over BO there

paraclete  posted on  2018-04-25   0:36:14 ET  Reply   Trace   Private Reply  


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