Planets have distinct smells based on their atmospheric chemistry, often described as rotten eggs (hydrogen sulfide), burnt steak/welding fumes (ozone/atomic oxygen in space), or ammonia, with Uranus and Neptune smelling like farts (sulfur), Venus like rotten eggs (sulfur dioxide), Jupiter like ammonia/rotten eggs, and Mars having a faint metallic scent, while astronauts report space itself smells like seared steak or hot metal.
Some regions have high concentrations of ammonia (which smells like cleaning fluid), others hydrogen sulphide (eggs) and others hydrogen cyanide (bitter almonds). Saturn and Neptune probably don't have much of a smell because they're composed chiefly of the odourless gases hydrogen and helium.
From the stench of rotten eggs to the sweet scent of almonds, space is a surprisingly smelly place, she says. Comets, planets, moons and gas clouds would each have their own unique odour if we were able to sniff them with our noses.
Mercury and its vapor have no taste or smell. The specific gravity of mercury is 13.546; therefore, it is heavier than lead (specific gravity – 11.34) and, like lead and other “heavy” metals, it is a potent poison.
Mars wouldn't smell like Earth's living landscapes. Expect a muted, cold, dry scent dominated by fine metallic/rusty dust and occasional faint oxidant (bleach-like) or sulfur notes, while any human or machine presence would quickly overwhelm the native Martian bouquet.
Our close neighbour Venus smells like—yep, you guessed it—rotten eggs (thanks once again to sulfur dioxide). But since no human has directly visited any of these planets, how do we know how they smell?
Water is the lifeblood of human survival and civilization and is critical for our sustained exploration beyond Earth. Fortunately, Mars has plenty of water to sustain our aspirations in the form of subsurface ice. Unfortunately, it is not clean water – it is contaminated by toxic perchlorates.
Phosphene, P H 3 is a colourless gas with a smell of rotten fish.
Exposure to high levels of elemental mercury vapor produces acute health effects. Respiratory symptoms predominate, and they include cough and difficulty breathing or shortness of breath (dyspnea). Gastrointestinal effects, such as metallic taste, nausea, vomiting (emesis), diarrhea, and abdominal pain, are frequent.
Six-time spacewalker Dave Wolf, currently flying on the International Space Station, said astronauts can't stop from sneezing inside their spacesuits, and there's no way to blow your nose.
But eventually, the lack of oxygen will take its toll. One by one, your major organs will shut down. After only a handful of minutes you will suffer complete organ failure, otherwise known in the medical community as death.
NASA astronauts used technology to determine that Uranus likely smells like rotten eggs. Yuck!
However, the molecule that has captivated everyone's imagination is ethyl formate. This compound contributes to the flavour of raspberries and smells similar to rum.
Mars does have an atmosphere, but it is about 100 times thinner than Earth's atmosphere and it has very little oxygen. The atmosphere on Mars is made up of mainly carbon dioxide. An astronaut on Mars would not be able to breathe the Martian air and would need a spacesuit with oxygen to work outdoors.
Imagine putting rotten eggs in an oven—that's Venus for you. Venus has lots of carbon dioxide as well as sulfur dioxide, which is the smell of rotten eggs.
Acrodynia, also known as pink disease, is defined as a condition in infants and toddlers resulting from chronic mercury exposure, characterized by painful erythema and swelling of the hands and feet, along with symptoms such as tachycardia, hyperhidrosis, restlessness, and irritability.
Mercury vapor is not irritating and has no odor, so people do not know when they are breathing it. Even the small amount of mercury from a broken thermometer can cause harm, especially to children, unless it is properly cleaned up and removed.
The most common way people in the U.S. are exposed to mercury is by eating seafood contaminated with methylmercury. Nearly all fish and shellfish contain trace amounts of methylmercury.
Hydrogen sulfide is a colorless, flammable gas that smells like rotten eggs at low concentration levels in the air.
Methylamine is a chemical intermediate. It has been used as the base for a variety of products including pharmaceuticals, insecticides, explosives, surfactants, and accelerators. It is commonly used in the tanning and dyeing industries and as a fuel additive.
The answer might surprise you 👀💨 Dimethyl sulphide (DMS) is the coolest gas you've probably never heard of. It's part of a cocktail of gases released from the ocean's surface - and it's what gives that lovely “sea breeze” its scent! But DMS also plays a very important role in naturally cooling Earth's climate.
The Martian environment poses special challenges to prospective Red Planet parents and their offspring. The effects of solar and cosmic ray radiation, reduced gravity, exposure to environmental toxins, even disrupted circadian rhythm can potentially impact parents and progeny alike.
Earth—the only known planet with vast oceans, lakes, and rivers—wears a blue cloak from space thanks to its 71% surface water coverage. This oceanic abundance not only shapes our planet's climate and life but also gives Earth its famous nickname: “the Blue Planet”.
While it does not rain water on Mars, the planet does experience weather phenomena like dust storms and clouds. There is also evidence that liquid water once flowed on Mars, suggesting that rain in the form of water might have been possible in the planet's distant past.