Comet 3I/ATLAS isn't just fascinating because it is the third interstellar visitor found in the solar system; new research suggests it's also the oldest comet ever seen at over 7 billion years old.

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into Earth's cosmic neighborhood.

Astronomers recently confirmed that a mysterious object, dubbed 3I/ATLAS came from interstellar space, blowing through the outer solar system at extremely high speeds. It's only the third ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers determine the object’s size.

3I/ATLAS, just the third confirmed interstellar visitor to our solar system, may be up to 3.5 miles wide. Thanks to the Hubble Space Telescope, we now have the sharpest image yet of the ...

A Harvard astronomer is suggesting that an interstellar object nearing Earth could be an engineered object — rather than a natural one — after making similar claims in in 2023 and 2017.

It's only the third confirmed interstellar object to have reached our star system, following 'Oumuamua, which was spotted in 2018, and a comet dubbed 2I/Borisov, which was identified in 2019.

Harvard scientist warns interstellar object blasting toward Earth ‘may come to save – or destroy us’ - 31/ATLAS is only the third interstellar object to be detected in our solar system ...