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The Smelly Truth About Uranus
Sciencing ^ | February 04, 2025 | Elias Nash

Posted on 02/06/2025 9:26:28 PM PST by Red Badger

To the delight of third grade humorists everywhere, scientists have proven that Uranus smells bad. The seventh planet from the sun has many claims to fame: Its axial tilt of 98 degrees is the most extreme in the solar system, essentially turning the planet sideways, and it also ranks absolute last on the order of planets from hottest to coldest, with temperatures that drop below -300 degrees Fahrenheit. However, Uranus tends to be overshadowed by the chuckles that often accompany its name, a fact that won't be helped by the revelation that it might also be the stinkiest planet of them all.

The Uranian atmosphere is characterized by heavy cloud cover, which has long been a point of interest for scientists, who debated what exactly these clouds were composed of. Answers were finally provided in a 2018 study published in the journal Nature Astronomy, which demonstrated that the cloud deck of Uranus is made up of hydrogen sulfide, the same odiferous gas that makes rotten eggs smell so awful.

The study in question relied upon the Near-Infrared Integral Field Spectrometer (NIFS), part of the Gemini North telescope located on Mauna Kea on the island of Hawaii. The NIFS creates 3D images based on waves in the near-infrared region of the electromagnetic spectrum. This technology has not only allowed us to determine the smelly nature of Uranus, but other important facts about its atmosphere as well.

The makeup of Uranus' atmosphere

Freelanceimages/universal Images Group/science Photo Library/Getty Images Hydrogen sulfide clouds only account for a small portion of the Uranian atmosphere. The primary elements of Uranus are hydrogen and helium. These elements dominate the atmosphere, albeit not the rocky interior of the planet. Methane is the third-most prominent element in the atmosphere, and it contributes heavily to the planet's appearance. Since methane absorbs red light, it causes Uranus as a whole to appear blue to our eyes. For most of human history, that was all we could observe of the seventh planet — a completely blue orb — but as imaging technologies have improved, we began to see distinct cloud patterns in the atmosphere.

Not only are Uranus's clouds made of noxious hydrogen sulfide, but they're also traveling at violent speeds. Most clouds on Earth lumber through the sky at a rate of 30 to 40 miles, but clouds on Uranus have been observed traveling on winds as fast as 560 miles per hour. It appears that the planet also undergoes violent storms periodically, but the exact forces behind this are still a mystery to scientists. Some observations have suggested that due to its extreme tilt and distance from the sun, most weather on Uranus is driven by heat from the planet's core rather than from the sun, as we experience on Earth.

What is hydrogen sulfide?

Zdayak/Shutterstock The stench of Uranus is caused by the fact that its clouds are made of hydrogen sulfide, but what exactly is this stuff? Here on Earth, hydrogen sulfide presents as a colorless gas, but it makes its presence known through its aggressive odor. It is sometimes colloquially referred to as "swamp gas" or "sewer gas" because hydrogen sulfide typically forms in areas with stagnant water and poor oxygen circulation, such as swamps and sewer pipes. The gas is emitted as a byproduct of bacteria breaking down dead plant and animal material.

Hydrogen sulfide is also notorious as the cause of rotten egg smell. This happens because eggs contain some amount of carbonic acid inside them, which slowly seeps out of the pores in the shell over time. This causes the inside of the egg to become more alkaline (basic), which in turn causes sulfur and hydrogen in the egg to start reacting with each other. The product of this reaction is the noxious hydrogen sulfide that can make your kitchen unbearably stinky.

That same stuff seeping out of rotten eggs is condensed in the clouds of Uranus, which presumably make the whole planet stink to high heaven. If you were ever to visit Uranus, you wouldn't have to worry about putting up with the stench, though. Between the planet's -300 degree Fahrenheit weather and lack of atmospheric oxygen, you'd be dead the instant you arrived there.

Read More: https://www.sciencing.com/1773016/smelly-truth-uranus/


TOPICS: Astronomy; Humor; Outdoors; Science; Travel
KEYWORDS: stinky; threetwo1; uranus; uranusjokes; urectum
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To: DoodleBob

Come on, Burst your hemorrhoid.


21 posted on 02/07/2025 2:06:03 AM PST by ImJustAnotherOkie
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To: Bob434

Sphincter would be to imprecise. A body has several of those.


22 posted on 02/07/2025 2:07:35 AM PST by ImJustAnotherOkie
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To: Red Badger

and just how much does rotten swamp gas stagnant water and rotten eggs smell when frozen here on earth? and we are to believe that on uranus, at -300, there is a scent?

sorry, not buying it...


23 posted on 02/07/2025 2:38:42 AM PST by sit-rep
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To: sit-rep

If a man passes gas in a forest and there’s no-one around to smell it, does his flatus still stink...?


24 posted on 02/07/2025 3:05:29 AM PST by mewzilla (Swing away, Mr. President, swing away!)
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To: Red Badger

Uranus smells. Film at 11:00.


25 posted on 02/07/2025 3:54:50 AM PST by BlackbirdSST (Trump or Bust! Long live the Republic.)
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To: mewzilla

...(Insert that dumb face of Biden thinking here...)...

😂


26 posted on 02/07/2025 4:26:36 AM PST by sit-rep
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To: sit-rep

It’s like the old Vedic question:

If a tree falls in a forest and there is no one there to hear it, does it make a sound?

If there is no one on Uranus to smell it, does it have an odor?

At -300°F there cannot be anyone there alive longer than a few seconds.................


27 posted on 02/07/2025 4:45:16 AM PST by Red Badger (Homeless veterans camp in the streets while illegals are put up in 5 Star hotels....................)
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To: sit-rep

If Uranus smells does that make Neptune a smart feller...?


28 posted on 02/07/2025 4:49:42 AM PST by mewzilla (Swing away, Mr. President, swing away!)
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To: Red Badger

Btt!


29 posted on 02/07/2025 6:24:32 AM PST by sit-rep
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To: Red Badger
I’m reading this as I eat my breakfast cereal, lol.

In the cartoon Futurama, the Professor states that scientists changed the name of Uranus because of all the childish jokes. What did they rename it? Urectum.

The first serious set of star charts I acquired many years ago is called Uranometria 2000.They don’t have any smell, lol.

30 posted on 02/07/2025 6:43:08 AM PST by telescope115 (I NEED MY SPACE!!! 🔭)
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To: telescope115
The Greek word ouranos means heaven or the sky, but also the god Ouranos, the father of the Titans. Uranus is the Latin spelling. So Uranometria makes sense as a set of charts of the sky.

Maybe we should just spell the planet's name Uranos.

31 posted on 02/07/2025 8:39:00 AM PST by Verginius Rufus
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To: Verginius Rufus
Maybe we should just spell the planet's name Uranos.

I like that. It works for me.

32 posted on 02/07/2025 10:38:13 AM PST by telescope115 (I NEED MY SPACE!!! 🔭)
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To: ProtectOurFreedom

Well, I didn’t say it to my wife. However, I did say it to my daughter who was sitting on the bed with my wife. Don’t worry, my daughter is 23 and she works as a first responder, so she’s heard everything there is to hear From her colleagues. As it happened, she was on the phone with a good friend of hers, and she looked at me with absolute horror on her face. Until I showed her the article on FR. Then her friend and my wife started laughing and all my daughter could say is “dad, you’re still 12 years old.“ Yeah, maybe so. But I have one subscribed to the statement that “you can only be young once, but you can be immature forever, and it’s a whole lot more fun than the alternative.” 😜


33 posted on 02/07/2025 5:50:58 PM PST by Ancesthntr ("The right to buy weapons is the right to be free." The Weapons Shops of Isher)
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To: hellinahandcart

Ping!


34 posted on 02/07/2025 7:04:00 PM PST by sauropod (Make sure Satan has to climb over a lot of Scripture to get to you. John MacArthur Ne supra crepidam)
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