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Interstellar Comet 3I/ATLAS Passes Earth Safely

12/21/2025

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Summary

Story summary

On December 19, 2025, interstellar comet 3I/ATLAS made its closest approach to Earth within about 170 million miles.
It is the third known interstellar object to pass through our solar system.
NASA's ATLAS discovered 3I/ATLAS in July 2025.
The flyby poses no threat to Earth.
The comet will continue its interstellar journey after this flyby.

History

Historical Context

The discovery of Comet Hale-Bopp in 1995 captivated the world, as it became one of the brightest comets visible for 18 months. This event followed a long history of comet observations, including the notable 1994 collision of Comet Shoemaker-Levy 9 with Jupiter. The recent flyby of interstellar comet 3I/ATLAS continues humanity's fascination with celestial phenomena and the exploration of our solar system.

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Story summary

On December 19, 2025, interstellar comet 3I/ATLAS made its closest approach to Earth within about 170 million miles.
It is the third known interstellar object to pass through our solar system.
NASA's ATLAS discovered 3I/ATLAS in July 2025.
The flyby poses no threat to Earth.
The comet will continue its interstellar journey after this flyby.

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