Rotten Egg facts

While investigating facts about Rotten Egg, I found out little known, but curios details like:

The “Aroma of Tacoma”, a putrid and terrible smelling odor akin to rotten eggs, associated with the city of Tacoma, Washington since the 1940’s.

We have a good idea of what other planets would smell like based on their atmospheric composition. Venus and Mars would smell like rotten eggs, while Uranus is odorless.

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 17 of the best facts about Rotten Egg I managed to collect.

1. Domestic gas is scented with a 'rotten egg smell' so it's easier to detect. Gas itself is odourless.

2. There are three main fart smells. Hydrogen sulfide produces the signature "rotten eggs" note, methanethiol produces hints of "decomposing vegetables," and dimethyl sulfide adds a hint of "sweetness."

3. Natural gas is naturally odorless. The "rotten egg" smell is added for safety to help you detect gas leaks.

4. Queen builds nest and lays eggs inside the hollow tree or under the rotten roots. Nest is made of chewed bark and it consists of numerous cells arranged in the form of honeycomb.

5. The main reason for the rotten smell of a fart is due to hydrogen sulfide. It produces the rotten egg smell.

6. Tacoma Washington had its own aroma that smells like rotten eggs.

7. The Octopus Stinkhorn, a bright-red, hellish looking fungus which bursts from an egg emitting a stench reminiscent of rotten flesh.

8. Dr. Robotnik (or Eggman) of the "Sonic the Hedgehog" franchise has a comic tie-in and a full backstory. In the comic, Dr. Ovi Kintobor and Sonic were friends, until a malfunction in the Dr.'s lab merged his body with a rotten egg and turned him evil.

9. There is a nebula nicknamed the Rotten Egg Nebula. This is due to the high levels of sulfuric compounds in the cloud such as hydrogen-sulphide and sulphur-dioxide.

10. If a egg is rotten, it will float in a bowl of water. If it sinks, it's good.

What is true about rotten egg?

You can easily fact check it by examining the linked well-known sources.

Female lays 10 to 30 eggs in the nest made of leaves or rotten wood. Hatchlings emerge from the eggs after incubation period of 60 to 65 days.

The atmospheric gasses that surround Uranus are made up of a concentration of hydrogen sulfide producing a rotten-egg smell. From this, they have concluded that Uranus smells like farts. - source

Comets smell like rotten eggs + farts + alcohol + horse urine + formaldehyde + bitter almonds. Basically a drunk roommate. - source

A 2014 study concluded that hydrogen sulfide, the gas associated with the smell of rotten eggs and farts, "could in fact be a healthcare hero with significant implications for future therapies for a variety of diseases.”

Probes have discovered appreciable amounts of Hydrogen Sulfide, the chemical that is known as rotten egg smell, on Uranus. TL;DR: Uranus Smells like Rotten Eggs - source