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comet

An ‘Asteroid’ Tracked Since 1998 Made an Unexplained Orbital Shift—Now Astronomers Say It’s Something Far More Mysterious

Jul 16, 2026

The SETI Institute Searched For Signs of Technology From 3I/ATLAS—a New Paper Reveals What They Found

Jun 6, 2026

Clues to the Origin of Falling Space Objects “Previously Hidden in the Data” Are Being Revealed with Help from AI

May 13, 2026

Webb Telescope Detects Unusually High Levels of "Heavy Hydrogen," a Key Component of Nuclear Fusion Fuel, in 3I/ATLAS

Mar 27, 2026

“We Knew This Was Something Really, Really Special”: NASA’s Hubble Space Telescope Captures a Comet’s Destruction

Mar 20, 2026

What’s Hidden Inside 3I/ATLAS? Astronomers Reveal Another Unexpected Discovery About Our Latest Interstellar Visitor

Mar 10, 2026

3I/ATLAS Is Making Its Closest Approach to Earth Today—Here’s Everything You Need to Know

Dec 19, 2025

3I/ATLAS Radio Signal Detections Offer New Confirmation of What Many Astronomers Have Been Saying for Months

Nov 11, 2025

3I/ATLAS is Leaving a Mysterious “Hidden” Trail of Particles in Its Wake—Now Scientists Have a Plan to Intercept It

Oct 22, 2025

3I/ATLAS is Displaying Surprising New Activity That Scientists Liken to "a Note from Another Planetary System"

Oct 10, 2025

Unusual New 3I/ATLAS Discovery Suggests the Interstellar Comet is “Anomalously Massive”

Sep 27, 2025

NASA Official Issues Statement on 3I/ATLAS as Images Reveal the Interstellar Object Has 'Grown' a Striking New Feature

Sep 18, 2025

3I/ATLAS is Now Headed Toward Mars, as Mystery Surrounding Interstellar Visitor Grows

Sep 4, 2025

3I/ATLAS Was Just Spotted by the James Webb Telescope, Confirming an Odd New Discovery About the Strange Interstellar Comet

Aug 26, 2025

3I/ATLAS Comet Mystery Deepens After ‘Tantalizing’ New Observations by NASA’s SPHEREx Mission

Aug 25, 2025

NASA Confirms Arrival of New Interstellar Object in Our Solar System: Here’s What We Know

Jul 3, 2025

Speeding Space Object Spotted by NASA-Funded Sungrazer Project Marks a Major New Milestone

Mar 28, 2024

Planetary Defense: How to Protect Earth from Deadly Asteroid Impacts

Jun 30, 2022

Did An Ancient Comet Turn Chile’s Atacama Desert Into Glass?

Nov 8, 2021

Christopher Plain

Mysterious Asteroid Phaethon is Challenging What We Understand About Comets

Aug 18, 2021

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