Found on July 1, 2025, by the Asteroid Terrestrial-impact Last Alert System (ATLAS) in Chile, this visitor is only the third ...

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

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

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

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

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 ...

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 ...

Comet C/2025 D1 (Gröller), discovered by Hannes Gröller, exhibits cometary activity at an unprecedented distance from the Sun, ... known as a coma, and even sports a broad tail.