As only the third interstellar object ever discovered, 3I/ATLAS offers a rare chance to study remnants of solar systems ...

We already knew that interstellar comet 3I/ATLAS was different from the other two interstellar objects known to have ...

An incredible new theory suggests that the mysterious interstellar object traveling through our solar system is not alone.

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Many theories are rock-solid: Scientists have just as much confidence in the theories of relativity, quantum mechanics, ...

The formation of Saturn's rings is an astronomical mystery. Saturn formed about 4.6 billion years ago, but the rings may have ...

Blind Date Earlier this year, astronomers spotted a mysterious interstellar visitor, widely believed to be a comet, screaming ...

Spotted by ATLAS telescope, 3I/ATLAS sparks wild theories—comet, alien ship, or cosmic threat? Hubble and James Webb aim to ...

An interstellar object called 3I/ATLAS is racing through the Solar System at a staggering speed of 209,214 kilometres per ...

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Plato's writings describe an advanced civilization that built grand temples and massive harbor walls before being swallowed ...

I/Atlas is estimated to be 3.5 miles wide, roughly the size of 22 football fields. It is an interstellar comet discovered by a Chilean observatory.