On July 1, 2025, a telescope in Chile caught a faint smudge drifting across the sky. Within weeks, astronomers confirmed it ...

When comet 3I/ATLAS swept past the Sun in late October 2025, it gave astronomers their best chance yet to taste the chemistry ...

An interstellar comet carries water unlike anything in our solar system, revealing a far colder birthplace and clues about ...

Astronomers analyzed the vapors coming off the comet when it neared the sun and found it had a lot of "heavy" water. That ...

For months now, astronomers have been closely watching the mysterious interstellar object 3I/ATLAS as it rips through the solar system at a breakneck velocity. And before it finally leaves us for good ...

ALMA reveals unusual “alien” water in interstellar comet 3I/ATLAS, showing it formed in an extremely cold, distant star ...

A mysterious interstellar comet older than the Sun is exposing alien chemistry and rewriting astronomy as we know it.

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

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Is it cropdusting Earth with toxins? When 3I/ATLAS made its fly-by of Earth on December 19, Harvard scientist Avi Loeb wondered if it could’ve delivered an early Xmas present — poison debris raining ...