Disclaimer: This article is based on actual news from the real world – honestly! However, it has been sprinkled with a healthy dose of satire.
CHILE — Astronomers operating a radio telescope array in the Chilean desert have confirmed that the third interstellar object ever detected by humanity is, chemically speaking, absolutely hammered. Comet 3I/ATLAS contains methanol levels that make most of our solar system’s comets look like lame stiffs. The discovery suggests that whatever planetary system produced this thing had a very different approach to ice formation. Or possibly a very similar approach to fermentation. Go home, universe, you’re drunk.
This comet is going to wake up with one universally almighty hangover. (NSF/AUI/NSF NRAO/M.Weiss)
As 3I/ATLAS warmed on its approach, its ices sublimated into a glowing coma of gas and dust, essentially broadcasting its chemical composition to anyone with the right equipment and enough curiosity. The ALMA team had both. What they found was a methanol-to-hydrogen-cyanide ratio in the range of 70 to 120, depending on when they looked. This places 3I/ATLAS among the most methanol-enriched comets ever observed, which is a polite way of saying it arrived at our solar system’s doorstep already six drinks in.
“Observing 3I/ATLAS is like taking a fingerprint from another solar system,” said Nathan Roth, lead author on the research and a professor at American University. He did not elaborate on what crime the comet was suspected of committing, though the methanol content suggests public intoxication at minimum.
Hydrogen cyanide, the team noted, appears to originate directly from the comet’s nucleus, which is typical. Methanol, however, seems to come from both the nucleus and from tiny ice particles in the surrounding coma that act as “mini-comets,” releasing their own methanol as they warm. Scientists described this as similar to behavior observed in some local comets, though with more complexity. Kind of like discovering your refrigerator has been running a secondary fermentation operation without your knowledge.
The finding adds to an unusual chemical inventory for 3I/ATLAS. Previous observations with the James Webb Space Telescope had already established that the object’s coma was dominated by carbon dioxide when it was farther from the sun, which scientists noted was unexpected and possibly indicative of a very different planetary formation environment, or possibly just a really weird party.
Only three interstellar objects have ever been confirmed: 1I/’Oumuamua in 2017, 2I/Borisov in 2019, and now 3I/ATLAS. All three have displayed properties that surprised researchers. ‘Oumuamua’s trajectory didn’t match purely gravitational dynamics. Borisov had unexpected compositional features. And 3I/ATLAS is apparently a flying distillery. The small sample size makes generalization risky, but the emerging pattern suggests that visitors from other planetary systems have been arriving with chemistry our own comets never developed. Astronomers are increasingly open to the possibility that we’ve been the weird ones all along.
The comet will continue its trajectory through our solar system before departing into interstellar space, taking its methanol with it. Astronomers have not indicated whether this represents a loss for humanity or simply an opportunity to reflect on how little we understand about what other planetary systems are doing with their ices.
The research is posted on the arXiv preprint server, where it can be accessed by anyone curious about the drinking habits of objects from beyond our solar system.
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