FACTArchive →
Comet 67P would smell like eggs, a horse stable and almonds. ☄️
FACT
@fact5
Creepy DiscoveriesOct 16, 2026

Comet 67P would smell like eggs, a horse stable and almonds. ☄️

Comet 67P would smell like eggs, a horse stable and almonds. ☄️ . . . In 2014, Rosetta's ROSINA instrument analyzed gases surrounding comet 67P/Churyumov–Gerasimenko. The mixture included hydrogen sulfide, ammonia and hydrogen cyanide. Space is a vacuum, so no astronaut could actually sniff it—but chemistry reconstructed the comet's revolting perfume.

See it on Facebook →← All facts
Source
https://www.smithsonianmag.com/smart-news/rosettas-comet-smells-really-really-bad-1-180953149/
Share → X Reddit WhatsApp Threads Facebook
Spot an error? Email hello@thefact5.com with a source — we correct visibly.
KEEP SCROLLING

More strange facts ✦

Miners opened a cave filled with 11-meter crystals. 💎
FACT
@fact5
Creepy Discoveries
Miners opened a cave filled with 11-meter crystals. 💎
Rain's familiar smell had no scientific name until 1964. 🌧️
FACT
@fact5
Creepy Discoveries
Rain's familiar smell had no scientific name until 1964. 🌧️
This cave hid its own world for 5.5 million years. 🕳️
FACT
@fact5
Creepy Discoveries
This cave hid its own world for 5.5 million years. 🕳️
Death Valley's rocks were finally caught moving themselves. 🪨
FACT
@fact5
Creepy Discoveries
Death Valley's rocks were finally caught moving themselves. 🪨
The Port Chicago Disaster
FACT
@fact5
Dark History
The Port Chicago Disaster
Washoe taught her adopted son a human language. 🐵
FACT
@fact5
Animal Oddities
Washoe taught her adopted son a human language. 🐵
Hisashi Ouchi endured an estimated 17 sieverts. ☢️
FACT
@fact5
Science Gone Wrong
Hisashi Ouchi endured an estimated 17 sieverts. ☢️
A whale grabbed her leg and shoved her to the surface. 🐋
FACT
@fact5
Animal Oddities
A whale grabbed her leg and shoved her to the surface. 🐋
A 12-year-old boy in Ohio started a bow tie business to pay for his adoption fees and earned enough to adopt 32 other children from foster care.
FACT
@fact5
Heartwarming Humanity
A 12-year-old boy in Ohio started a bow tie business to pay for his adoption fees and earned enough to adopt 32 other children from foster care.
This nuclear mass could kill you within five minutes. ☢️
FACT
@fact5
Science Gone Wrong
This nuclear mass could kill you within five minutes. ☢️
Romeo the wild wolf spent six winters asking dogs to play. 🐺
FACT
@fact5
Animal Oddities
Romeo the wild wolf spent six winters asking dogs to play. 🐺
Post-it Notes came from glue that failed to stick. 🗒️
FACT
@fact5
Ironic Twists
Post-it Notes came from glue that failed to stick. 🗒️
🎲 Surprise me with another