Its unusual properties have driven debate among astronomers and space enthusiasts as it approaches its closest point to Earth ...

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

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

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

NASA released images of an interstellar comet flying past Mars, and scientists expressed doubt about the possibility that it ...

NASA officials dismissed theories that the interstellar 3I/ATLAS could be an alien spaceship while dropping new photos of the ...

NASA released new images of 3I/ATLAS as it plunged towards the sun, captured by a host of the agency’s robots and probes.

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

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said Wednesday, moving to quash a wave of online speculation.

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