The most consequential detail about interstellar comet 3I/ATLAS is not that it is rare, but it is doing things that make long ...

What: Ultraviolet observations of the interstellar comet 3I/ATLAS captured by NASA’s Europa Clipper spacecraft while the ...

Comet 3I/ATLAS has arrived in the inner solar system behaving as if the usual rules of comet physics were optional. Instead ...

New analyses from SOHO and the Green Bank Telescope indicate interstellar comet 3I/ATLAS behaved like a normal comet as it ...

Astronomers tracking interstellar comet 3I/ATLAS reveal a far bigger story: a colossal, rotating chain of galaxies that may be the universe's largest spinning structure.

Interstellar comet 3I/ATLAS might be older than our Sun and is estimated to be between eight and 14 billion years old and ...

I/ATLAS may have moved away from Earth as it makes its way out of the solar system, but this interstellar intruder continues ...

Astronomers are thrilled by new Hubble images of interstellar comet 3I/ATLAS, revealing two distinct jets of material ...

Hubble has captured stunning images of interstellar comet 3I/ATLAS, revealing twin wobbling jets, offering rare insight into ...

"It points in the same direction as the weaker jet in the new Hubble images from December 12 and 27, 2025, and is accompanied ...

NASA's Deep Impact spacecraft is running on fumes after chasing down two comets in the last five years, but the probe's cosmic work may not be done yet. Deep Impact cruised to within 435 miles (700 ...