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What Does Mars Smell Like?
Scientific American ^ | June 10, 2016 | Leonard David

Posted on 07/17/2025 9:35:15 AM PDT by Red Badger

Trying to create a whiff of an alien atmosphere—sunbaked sulfur and chalk

NASA/JPL-Caltech/MSSS

=============================================================

Robot explorers have found Mars to be a world of sulfur, acids, magnesium, iron and chlorine compounds, all of which are sunbaked and wrapped in a carbon-dioxide-rich atmosphere.

But what would this complex and exotic brew smell like?

It turns out that everyone—not just Mars explorers—might be able to find out, because there may be ways to recreate whiffs of the Red Planet here on Earth.

One relatively recent innovation in the perfume business is "Headspace" technology.

"It gathers the molecules, and then the sample is brought back to the lab to be analyzed by spectral analysis. The results are typically synthesized to create a scent that mimics the smell of those molecules," said Jacquelyn Ford Morie, founder and chief scientist of the California-based company All These Worlds LLC, which uses virtual reality (VR) and other technology to create "immersive experiences" for a variety of applications.

Morie thinks Headspace, or something like it, could be used to decode the smell of Mars.

"I think that new artisan fragrance designers would love to design a series of scents that are their own, nonsampled interpretations of what Mars might smell like," she told Space.com.

A future mission could take a spectroscopic reading of the Martian atmosphere, then beam that information back to Earth, where Headspace hardware could reconstruct (or evoke) the Red Planet scent, Morie added.

"That's the cool thing about the artisan scent designers," she said. "They can add the more stinky elements to make a scent that hints at the real Mars while still being cool to smell. Many top fragrances have small bits of those otherwise smelly elements in them."

Eau de Red Planet

Morie suspects that the predominant Mars odor is a slightly acrid, gassy smell of sulfur compounds, with a chalky, sweet overtone punching through. This scent would become a big part of Red Planet settlers' lives.

"Imagine 30 or 40 years from now, when we have established colonies on Mars, and the colonists have become not only accepting of the scented detritus they track into their habitats, but actually consider it the smell of home," Morie said.

Future colonists could perhaps also use finely crafted habitat scents as harmonious counterpoints to the native smells of their adopted planet, she added.

Studies have shown repeatedly that smell is intimately tied to memory; whiffs of a familiar scent can trigger nostalgia and other strong feelings about times long past.

So, if Mars colonists "need to return to Earth, they would absolutely require a vial or two of 'Eau de Red Planet' to remind them of their life on this distant human outpost," Morie said.

Extraterrestrial encounters

Decoding or replicating Mars' scent would not be the first extraterrestrial encounter of the odor kind.

During the Apollo lunar landing program, for example, some of the moonwalkers noticed that they had brought back rock and dust particles into their lunar module. The material tainted their spacesuits. Once the astronauts took off their helmets, the moon's smell—which was likened to wet ashes in a fireplace, or spent gunpowder from a just-fired shotgun—was evident.

Then, in 1998, scientists with New York-based International Flavors & Fragrances Inc. (IFF) sent a miniature rose plant aboard the space shuttle Discovery on its STS-95 mission, to study the effect of microgravity on scent.

Using proprietary technologies, the team, led by Braja Mookherjee, tracked radical shifts in the living flower's scent over the course of the shuttle flight.

"Ultimately, they discovered and created new-to-world profiles that have since gone on to enormous commercial success," IFF representatives wrote in a blog post late last year.

In addition, artisan Carrie Paterson has investigated making scents of life on Earth that can be embedded as olfactory information into multichannel interstellar messages. Then, there's the work of designer Saskia Wilson-Brown, who's interested in finding out what UFOs might smell like.


TOPICS: Astronomy; Education; History; Military/Veterans; Science
KEYWORDS: astronomy; mars; olfactory; science; smell

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1 posted on 07/17/2025 9:35:15 AM PDT by Red Badger
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To: Red Badger

Uranus?


2 posted on 07/17/2025 9:35:56 AM PDT by DIRTYSECRET
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To: Red Badger

Chocolate?


3 posted on 07/17/2025 9:36:20 AM PDT by kaktuskid
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To: Red Badger

Matt Damon? Potatoes?


4 posted on 07/17/2025 9:39:00 AM PDT by blackdog ((Z28.310) "Diggin the scene with a gangster lean" (Mayfield, Curtis) )
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To: Red Badger

It smells like accomplishment.


5 posted on 07/17/2025 9:39:02 AM PDT by Sirius Lee ("Never argue with a fool, onlookers may not be able to tell the difference.”)
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To: Red Badger


6 posted on 07/17/2025 9:39:48 AM PDT by Magnum44 (...against all enemies, foreign and domestic... )
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To: Red Badger

Teen Spirit?
Victory?


7 posted on 07/17/2025 9:48:16 AM PDT by desertsolitaire
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To: Red Badger

sulphur smells like a fart. So Mars smells like farts. The end.


8 posted on 07/17/2025 9:48:24 AM PDT by MarlonRando
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To: DIRTYSECRET

with a hint of fromuder cheese


9 posted on 07/17/2025 9:50:03 AM PDT by al baby (Whoopie Cushion Goldberg )
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To: Red Badger

“Death”

Until the next technological leap which will permit the transport of heavy mining equipment for underground habitat.

Not sure the point, but there it is.


10 posted on 07/17/2025 9:52:31 AM PDT by logi_cal869 (-cynicus the "concern troll" a/o 10/03/2018 /!i!! &@$%&*(@ -')
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To: Red Badger

Scent therapy might be cool closer to home for Alzheimer’s or memory loss or coma patients.

Another would be scents of victory, scent of liberal tears, etc.

Just no scents of de feet.


11 posted on 07/17/2025 9:55:01 AM PDT by piasa (Attitude adjustmilents offered here free of charge)
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To: Red Badger
Going around sniffing other planets is weird.

No wonder the Martians moved underground.

12 posted on 07/17/2025 9:58:55 AM PDT by Harmless Teddy Bear ( Not my circus. Not my monkeys. But I can pick out the clowns at 100 yards.)
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To: Red Badger

Chocolate?


13 posted on 07/17/2025 10:00:17 AM PDT by SkyDancer ( ~ Am Yisrael Chai ~)
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To: DIRTYSECRET

I knew a Uranus joke was coming.


14 posted on 07/17/2025 10:05:41 AM PDT by rdl6989
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To: Red Badger
Smells like school spirit.

15 posted on 07/17/2025 10:08:12 AM PDT by Governor Dinwiddie ( O give thanks unto the Lord, for He is gracious, and his mercy endures forever. — Psalm 106)
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To: Red Badger

Forget it. I’m not pulling your finger! ;)


16 posted on 07/17/2025 10:09:37 AM PDT by Diana in Wisconsin (I don't have, 'Hobbies.' I'm developing a robust Post-Apocalyptic skill set.)
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To: Red Badger

“My, that sulfur and chlorine sent is becoming of you!
The chalky sweet overtones are driving me mad!”


17 posted on 07/17/2025 10:16:26 AM PDT by bk1000 (Banned from Breitbart)
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To: DIRTYSECRET

That was quick.

You win the thread.


18 posted on 07/17/2025 10:18:02 AM PDT by moviefan8
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To: DIRTYSECRET
Uranus?

Untitled

19 posted on 07/17/2025 10:19:45 AM PDT by RckyRaCoCo (Please pray for my brother Ken)
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To: Red Badger

Not sure what Mars smells like, but I bet I know what Venus smells like.


20 posted on 07/17/2025 10:37:48 AM PDT by Get Daddy a Beer
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