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The More Astronomers Watch Interstellar Comet 3I/ATLAS, the Weirder It Gets

When NASA's ATLAS survey first spotted the interstellar comet 3I/ATLAS in July 2025, astronomers recognized it as a rare and intriguing visitor from

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Astrophysicist explains what we know about interstellar traveler 3I/Atlas — and what makes it so special

Astronomers Just Found a “Zombie Star” With a Shocking Backstory

Astronomers uncover a hidden world on the solar system’s edge