Story perspectives

James Webb Unveils Secrets of Speedy Interstellar Comet 3I/ATLAS

9/3/2025

Summary

Story summary

The James Webb Space Telescope (JWST) has gathered data on interstellar comet 3I/ATLAS, traveling at 130,000 mph.
Discovered on July 1, 2025, it is the third known interstellar object, with its chemical composition currently under study.
3I/ATLAS is rich in carbon dioxide, unlike its predecessor 2I/Borisov, which had more carbon monoxide.
The comet will make its closest approach to the sun in October, with observations resuming in November.
A live event at the Gemini South Observatory engaged the public in real-time research on the comet.

History

Historical Context

Halley's Comet, first observed in 1066, was closely studied during its 1986 flyby by Voyager 2, revealing its composition of approximately 85% water ice. This legacy continues with the discovery of interstellar object 3I/ATLAS, which may enhance our understanding of solar system formation. Its carbon dioxide-rich composition could provide insights into the origins of comets and planetary systems.

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Story summary

The James Webb Space Telescope (JWST) has gathered data on interstellar comet 3I/ATLAS, traveling at 130,000 mph.
Discovered on July 1, 2025, it is the third known interstellar object, with its chemical composition currently under study.
3I/ATLAS is rich in carbon dioxide, unlike its predecessor 2I/Borisov, which had more carbon monoxide.
The comet will make its closest approach to the sun in October, with observations resuming in November.
A live event at the Gemini South Observatory engaged the public in real-time research on the comet.

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