Our solar system's famous "invader" might be as old as the Milky Way itself.
New evidence suggests that the famous interstellar traveler may be so old that its home system no longer exists.
The interstellar comet 3I/ATLAS, recently discovered in our solar system, could be nearly 12 billion years old. Its ...
Interstellar comet 3I/ATLAS stole our hearts in 2025. Discovered on July 1, and only the third known interstellar visitor, it ...
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If C/2026 A1 (MAPS) survives its close encounter with the sun, it could blaze brightly enough to be seen from Earth.
I/ATLAS may be more than the strangest space object astronomers have observed within our solar system—it could also be one of ...
Loeb set imaginations afire last year when he began raising questions about the object’s irregularities.
Theoretical physicist Avi Loeb said we all need to be a bit more 'optimistic' when it comes to aliens while discussing how JD ...
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Webb Telescope heavy hydrogen in 3I/ATLAS reveals rare deuterium-rich chemistry and a possible ultra-cold alien origin.