All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)
cybermango
295 points
165 comments
April 17, 2026
Related Discussions
Found 5 related stories in 52.2ms across 4,861 title embeddings via pgvector HNSW
- Artemis II and the invisible hazard on the way to the Moon zeristor · 84 pts · April 10, 2026 · 49% similar
- Artemis II lifts off: four astronauts begin 10-day lunar mission Philpax · 276 pts · April 01, 2026 · 47% similar
- Lunar Flyby kipi · 561 pts · April 07, 2026 · 47% similar
- Oxygen made from Moon dust for first time jonbaer · 13 pts · April 12, 2026 · 47% similar
- Artemis II crew see first glimpse of far side of Moon [video] mooreds · 458 pts · April 05, 2026 · 47% similar
Discussion Highlights (20 comments)
m463
we have similar problems with volcanic ash on earth
jjmarr
Have any of them developed cancer from the space asbestos yet?
OsrsNeedsf2P
They describe the dust on the moon as, > Fine like powder, but sharp like glass Sounds scary. But totally worth it!
krunck
Mars has toxic levels of perchlorates in the regolith. That will require that humans never come in contact with the regolith or things that touched it. Those space suits that dock to vehicles seem like a necessity. https://en.wikipedia.org/wiki/Perchlorate#On_Mars
BFV
That’s such a weirdly specific detail but also kinda fascinating. Imagine going to the Moon and the first thing you notice is “huh… smells like gunpowder.
tcp_handshaker
"The toxic side of the Moon" - https://news.ycombinator.com/item?id=47768039
ortusdux
This is a big perk of the newer lunar rover design, wherein the suits stay outside the vehicle - https://en.wikipedia.org/wiki/Space_Exploration_Vehicle#Spec... There has been some great research into laser or solar sintering of regolith, and one of my first questions was if the resulting material is safe for humans. https://www.nature.com/articles/s41598-023-42008-1
corysama
I recall an article from a long time ago that basically said “astronauts report” the moon smells like spent gunpowder and outer space smell like… I think it was ozone. What they were actually reporting was the smell of the airlocks after they returned from their excursions. The moon has no atmosphere, so it has been accumulating dust from billions of years of asteroid impacts that have never come in contact with oxygen. Many of the chemicals in the dust are oxidative and so when it is exposed to air for the first time it rapidly oxidizes just like gunpowder! And I think the outer space report was from space walks, and the explanation was that the first time the airlock itself was exposed to hard vacuum, the surfaces of the airlock would have a reaction that left a scent of ozone.
hvs
If you want to get depressed about all the problems with trying to colonize Mars, I recommend A City on Mars: https://www.acityonmars.com/ It's by the cartoonist of Saturday Morning Breakfast Cereal and his wife (the one with an actual science PhD). https://www.smbc-comics.com/
lucasaug
When life gives you lemons, don't make lemonade
Patrick_Devine
Isn't this why NASA is developing the Electrodynamic Dust Shield [1] system? [1] https://www.nasa.gov/image-article/nasas-dust-shield-success...
tillinghast
Cue Cave Johnson: “The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel. And guess what? Ground up moon rocks are pure poison. I am deathly ill.”
mirekrusin
Sounds similar to asbestos.
mncharity
> "I think one of the most aggravating, restricting facets of lunar surface exploration is the dust and its adherence to everything no matter what kind of material, whether it be skin, suit material, metal, no matter what it be and its restrictive, friction-like action to everything it gets on [...] the simple large-tolerance mechanical devices on the Rover began to show the effect of dust as the EVAs went on. By the middle or the end of the third EVA, simple things like bag locks and the lock which held the pallet on the Rover began not only to malfunction but to not function at all. They effectively froze. We tried to dust them and bang the dust off and clean them, and there was just no way. The effect of dust on mirrors, cameras, and checklists is phenomenal. You have to live with it but you're continually fighting the dust problem both outside and inside the spacecraft. Once you get inside the spacecraft, as much as you dust yourself, you start taking off the suits and you have dust on your hands and your face and you're walking in it. You can be as careful in cleaning up as you want to, but it just sort of inhabits every nook and cranny in the spacecraft and every pore in your skin [...]" Eugene Cernan, Apollo 17 debrief[1] An interactive microscope of regolith.[2] Like tiny broken glass, hard as rock, and sticking to everything like static-charged packing peanuts. An old tech memo and paper.[3][4] [1] https://an.rsl.wustl.edu/apollo/data/A17/resources/a17-techd... page "27-28" 258, 50 in pdf. Lots of other mentions of dust. [2] interactive microscope of regolith https://virtualmicroscope.org/sites/default/files/html5Asset... [3] The Effects of Lunar Dust on EVA Systems During the Apollo Missions https://ntrs.nasa.gov/api/citations/20050160460/downloads/20... [4] IMPACT OF DUST ON LUNAR EXPLORATION https://adsabs.harvard.edu/pdf/2007ESASP.643..239S
alex_be
"In addition the Moon has no atmosphere and is constantly bombarded by radiation from the Sun that causes the soil to become electrostatically charged." - You can use a magnetic or electric field to push the soil away
consumer451
As a huge space nerd, I would like to point out that space, and other planetary bodies appear to really suck. It seems to be under-reported that the Earth is pretty nice.
youknownothing
To be fair, considering that there are minerals in the Moon that don't exist on Earth, it's normal that the human body experiments an allergic reaction to a set of substances that it hasn't ever been exposed to during thousands of years of evolution.
hellopineapple
Hourly cost doesn’t seems the right metrics, instead the cost should be tied to productivity or difficulty of problem solved
nvader
Lunar dust is Kiki while earth dust is bouba.
tyrowvgt
Unbelievable, billions spent on sending few to moon while millions are dying homeless here