When comet 3I/ATLAS swept through the inner solar system in late 2025, it gave astronomers something no interstellar visitor ...

That’s the official word from NASA about an interstellar object known as 3I/ATLAS. The object, first identified by NASA’s Asteroid Terrestrial-impact Last Alert System in July, had scientists and the ...

3I/ATLAS, an interstellar object identified by NASA as a comet, will swing by Earth in its closest approach this week. Scientists have been tracking the comet’s grand tour of our solar system since it ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a technosignature. Reading time 3 minutes From the moment astronomers discovered ...

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A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have ...

Astronomers have identified an unusual chemical signature in the interstellar comet 3I/ATLAS, revealing that it contains ...

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A cosmic traveler from beyond our solar system is making its closest approach to Earth this week, offering astronomers and stargazers a fleeting opportunity to witness a visitor from another star ...

Long before 3I/ATLAS slipped through the inner solar system, its water had already recorded the kind of place it came from.