You can watch comet 3I/ATLAS live online tonight (July 3), thanks to the Virtual Telescope Project, which will livestream ...

NASA’s ATLAS survey telescope found an interstellar comet, which could be the largest yet, in the direction of the Sagittarius constellation.

Spotting a possible interstellar object is incredibly rare, and it’s exciting that our UH-operated system caught it,” ...

Properties such as a marginal coma and short tail indicate signs of cometary activity, according to the Minor Planet Center.. Numerous telescopes have reported additional observations since the ...

Sometimes "the universe comes to us," writes the European Space Agency. For the third time since 2017, an interstellar object ...

It isn’t a bird, it isn’t a plane and it certainly isn’t Superman – but it does appear to be a visitor from beyond our solar ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Recent observations have revealed carbon monoxide venting from the largest comet ever seen, providing clues about its origins ...

The Solar System is being visited by a colossus that has put astronomers around the world on alert. It is the comet 3I/ATLAS, also known as A11pl3Z, an interstellar body that comes ...

Comet C/2025 D1 (Gröller) is one of just a few so-called ultradistant comets, seen active as far out as Uranus.