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Interstellar Comet 3I/ATLAS is almost as old as the universe itself

The evidence is mounting: this interstellar visitor is even older and weirder than anyone thought

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Interstellar Comet 3I/ATLAS is almost as old as the universe itself

Interstellar Comet 3I/ATLAS, discovered in 2025, exhibits carbon isotope signatures indicating ~12 billion years old—roughly 3× the age of the solar system. The finding suggests solar system comets are anomalous; upcoming Vera Rubin Observatory surveys will likely discover more interstellar objects, reshaping planetary-formation models.

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sabato 20 giugno 2026·economictimes.indiatimes.com
Discovered just a year ago, interstellar comet 3I/ATLAS could be one of the oldest objects ever observed by humanity
Interstellar comet, 3I/ATLAS, might be one of the oldest celestial bodies ever seen, potentially forming 10 to 12 billion years ago. This ancient visitor, detected in July 2025,…
lunedì 22 giugno 2026·nature.com
Isotopic evidence for a cold and distant origin of 3I/ATLAS - Nature
Carbon isotopic measurements of the interstellar comet 3I/ATLAS reveal that it may have formed as long ago as 12 billion years and thus represents a preserved fragment of an…

Interstellar Comet 3I/ATLAS is almost as old as the universe itself

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Interstellar Comet 3I/ATLAS is almost as old as the universe itself

Timeline cronologica

Discovered just a year ago, interstellar comet 3I/ATLAS could be one of the oldest objects ever observed by humanity

Isotopic evidence for a cold and distant origin of 3I/ATLAS - Nature

Interstellar comet 3I/ATLAS is much older than the solar system itself

Interstellar comet likely far older than Solar System: astronomers

Rare Interstellar Comet 3I/ATLAS Has an Astonishingly Ancient Origin

Discovered just a year ago, interstellar comet 3I/ATLAS could be one of the oldest objects ever observed by…

Interstellar comet likely far older than Solar System, say astronomers

Interstellar Comet 3I/ATLAS is almost as old as the universe itself

NASA’s Webb Finds Clues to Ancient, Distant Origin of Comet 3I/ATLAS - NASA Science

The Chemistry of Interstellar Comet 3I/ATLAS Is Unlike Anything We've Ever Seen

Ancient interstellar comet may predate Solar System by billions of years

Interstellar comet may be oldest object seen in our solar system, scientists say

Interstellar comet that zoomed past Earth could be oldest and coldest object ever seen in solar system, astronomers say

Interstellar comet likely far older than Solar System: astronomers

Astronomers think they may have found the oldest visitor ever to our solar system

Interstellar comet likely far older than Solar System, say astronomers

El cometa 3I/ATLAS podría ser más antiguo que el Sistema Solar, según un estudio

This comet might be 3 times older than solar system

Strange interstellar comet speculated to be alien craft is older than Solar System

Webb telescope finds interstellar comet had exotic, unfamiliar chemistry

Interstellar comet 3I/ATLAS is much older than the solar system itself

3I/ATLAS: Interstellarer Komet ist wohl sogar 10 bis 12 Milliarden Jahre alt

Rare Interstellar Comet 3I/ATLAS Has an Astonishingly Ancient Origin

La cometa interstellare 3I/ATLAS è antica quasi quanto l’universo stesso

NASA looks for the origins of interstellar comet 3I/ATLAS | Space photo of the day for June 24, 2026