When astronomers first spotted a faint, fast-moving object racing through the outer Solar System in mid-2025, few expected it ...

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's everything to know about it.

An intriguing interstellar object known as 3I/ATLAS is, as of now, on the opposite side of the sun from Earth – making it impossible to observe from the ground. But spacecraft orbiting around our ...

Comet 3I/ATLAS was discovered on July 1, 2025, by the NASA-funded ATLAS telescope in Rio Hurtado, Chile and was quickly confirmed to be just the third interstellar visitor to our solar system, after ...

I/ATLAS, a rare interstellar comet, may predate the Sun. Scientists study its ancient material, offering unprecedented ...

This summer, NASA confirmed that a mysterious object racing through the solar system came from interstellar space, only the third of its kind to be discovered. News of the discovery was announced on ...

When 3I/ATLAS swept past the sun in late October 2025, it became only the third confirmed visitor from interstellar space ...

Interstellar comet 3I-ATLAS is a rare cosmic visitor that may be older than our Sun, offering scientists a unique glimpse ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

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