The unusual comet—which is to pass Earth again in the coming weeks—is only the third known object to visit us from outside ...

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

NASA is unveiling close-up pictures of the interstellar comet that's making a quick one-and-done tour of our solar system.

NASA's treasure trove of new comet 3I/ATLAS images provides hotly anticipated views of the interstellar visitor, including ...

The path of comet 3I/ATLAS through the solar system has been predicted with an accuracy 10 times greater than previous ...

A newly discovered comet named C/2025 V1, which some have compared to 3I/ATLAS, is due to make its closest approach to Earth on Tuesday, Nov. 11.

NASA is providing more images and information about the interstellar object that's passing through our solar system right now ...

The European Space Agency's (ESA) two satellites and several NASA spacecraft at and near Mars zoomed in on the comet as it ...

ATLAS is back on the map. Contrary to claims that 3I/ATLAS is no longer from Earth, space experts claim that the Manhattan-sized comet can now be captured by anyone with basic viewing equipment.

Comet 3I/ATLAS was expected to come within 130 million miles of the sun on Oct. 30. For the time being, 3I/ATLAS will remain on the opposite side of the sun from Earth, making it impossible to observe ...

A celestial outsider known as 3I/ATLAS has made its closest rendezvous with the sun as it continues to rove through our cosmic neighborhood and add to its growing renown. Originating from a completely ...