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Ancient Comet Reveals Nickel Vapor, Reshaping Cosmic Chemistry

11/2/2025

30 3 Full Breakdown

Summary

Comet Discovery Insights

Interstellar comet 3I/ATLAS shows nickel vapor at a distance near four times Earth's orbit from the Sun.
Researchers, including Darryl Z. Seligman and Thomas Puzia, say the finding reshapes ideas about metal vaporization.
The comet may be older than the solar system and informs the chemistry of distant planetary systems.
Ongoing observations will study its thermodynamic changes as it nears the Sun, clarifying its origin and evolution.

Summary

Comet Brightens Unexpectedly

Interstellar comet 3I/ATLAS brightened unexpectedly near the sun, reaching perihelion on October 29, 2025, according to STEREO and SOHO observations.
The brightness surge was steeper than typical comets.
Ground-based observations will resume as it emerges from behind the sun to study mass loss and chemical makeup.
This is the third known interstellar visitor, offering insights into distant stars and planet formation.

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Comet Discovery Insights

Interstellar comet 3I/ATLAS shows nickel vapor at a distance near four times Earth's orbit from the Sun.
Researchers, including Darryl Z. Seligman and Thomas Puzia, say the finding reshapes ideas about metal vaporization.
The comet may be older than the solar system and informs the chemistry of distant planetary systems.
Ongoing observations will study its thermodynamic changes as it nears the Sun, clarifying its origin and evolution.

1 / 2