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Interstellar Comet 3I/ATLAS to Pass Safely by Earth

12/16/2025

33 8 Full Breakdown

Summary

Story summary

The interstellar comet 3I/ATLAS will pass within 167 million miles of Earth on December 19.
Discovered by NASA's ATLAS telescope in July, 3I/ATLAS is the third confirmed interstellar object in our solar system.
NASA observations indicate the comet is fading as it exits.
Acting NASA administrator Sean Duffy confirms it poses no threat to Earth.
It will approach Jupiter in March before heading into interstellar space by the mid-2030s.

History

Historical Context

Comet Hale-Bopp, discovered independently by Alan Hale and Thomas Bopp on July 23, 1995, became one of the most observed comets in history, peaking in brightness in 1997. Its massive nucleus, estimated at 40 kilometers wide, allowed it to remain visible for 18 months, captivating the public and advancing cometary science. The recent discovery of interstellar comet 3I/ATLAS echoes this excitement in astronomy.

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Story summary

The interstellar comet 3I/ATLAS will pass within 167 million miles of Earth on December 19.
Discovered by NASA's ATLAS telescope in July, 3I/ATLAS is the third confirmed interstellar object in our solar system.
NASA observations indicate the comet is fading as it exits.
Acting NASA administrator Sean Duffy confirms it poses no threat to Earth.
It will approach Jupiter in March before heading into interstellar space by the mid-2030s.

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