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Phosphine Detected on Brown Dwarf, Sparks Further Investigation

10/3/2025

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Summary

Story summary

Astronomers detect phosphine on Wolf 1130C, a brown dwarf 54 light-years away.
The finding is the first clear phosphine detection in a brown dwarf, about 100 parts per billion.
Researchers caution against treating phosphine as a biosignature until its formation is understood.
A study published in Science emphasizes further exploration of phosphine in other celestial objects.

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Story summary

Astronomers detect phosphine on Wolf 1130C, a brown dwarf 54 light-years away.
The finding is the first clear phosphine detection in a brown dwarf, about 100 parts per billion.
Researchers caution against treating phosphine as a biosignature until its formation is understood.
A study published in Science emphasizes further exploration of phosphine in other celestial objects.