This Could Be the Oldest Object Ever Observed
Researchers analyzed the chemical structure of interstellar comet 3I/ATLAS using the James Webb Space Telescope. Data suggests the object formed between 10 and 12 billion years ago. This would make it older than the Sun, Earth, and other objects in the solar system.
What changed
New reports identify Matthew Hopkins as the researcher analyzing the object and specify a formation window of 10 to 12 billion years.
Live updates
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Interstellar Comet 3I/ATLAS May Be Oldest Object Observed
confidence 80%Researchers analyzed the chemical structure of interstellar comet 3I/ATLAS using the James Webb Space Telescope. Data suggests the object formed between 10 and 12 billion years ago. This would make it older than the Sun, Earth, and other objects in the solar system.
What's confirmed:
- Interstellar comet 3I/ATLAS may be older than the solar system.
- The James Webb Space Telescope was used to analyze the chemical structure of 3I/ATLAS.
- 3I/ATLAS is the third confirmed interstellar visitor.
Still unconfirmed:
- 3I/ATLAS formed between 10 and 12 billion years ago.
- 3I/ATLAS was discovered on July 1 last year.
- Matthew Hopkins, an Oxford PhD student, analyzed the comet.
- The origin of 3I/ATLAS within the Milky Way remains a mystery.
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Interstellar Comet 3I/ATLAS May Be Oldest Object Ever Observed
confidence 90%Astronomers believe interstellar comet 3I/ATLAS could be up to 12 billion years old. This age would make it nearly three times older than the solar system. Data from the James Webb Space Telescope provided clues regarding its ancient origin.
What's confirmed:
- Interstellar comet 3I/ATLAS was discovered on July 1, 2025, by the Asteroid Terrestrial-impact Last Alert System.
- Researchers estimate the comet may be up to 12 billion years old.
- The comet is potentially the oldest and coldest object ever seen in the solar system.
- The James Webb Space Telescope provided clues to the origin of the comet.
Still unconfirmed:
- Avi Loeb claims methane signatures indicate organisms on 3I/ATLAS.
- A study in Nature used isotopic evidence to determine the comet's age.