Astronomer Gianluca Masi of the Virtual Telescope Project captured breathtaking imagery of solar system comet C/2025 K1 ...

I/ATLAS is a comet, not an alien, according to many experts, though some celebrities, and even one Harvard professor, have ...

Interstellar Comet 3I/ATLAS, discovered in July 2025, is only the third known object to visit our solar system from another star, after ʻOumuamua and 2I/Borisov. It made its closest approach to the ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

The object is the third interstellar visitor to our solar system ever confirmed. It will reach its closest point to Earth ...

As far as physical features, NASA says 3I/ATLAS has speed, color, and direction that are, “consistent with what we’d expect ...

I/ATLAS offers a rare chance to study material that has travelled billions of kilometres because it originates from another ...

Back on planet Earth, and deep inside a pitch-black, sulfuric cave on the Albanian-Greek border, we reported on a study that ...

NASA has released new images of interstellar comet 3I/ATLAS, revealing massive jets, unusual behaviour, and a briefly ...

The comet 3/Atlas was discovered on 1 January 2025 by the NASA-funded ATLAS observatory and is only the third confirmed ...

NASA shares why its HiRISE photo of 3I/Atlas appears blurry, even as amateur astronomers release sharper comet images.