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

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

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 hosted a livestream Nov. 19 to share newly released images of Comet 3I/ATLAS, the third known interstellar object to ...

Interstellar comet 3I/ATLAS, third visitor to our system, is pure ice—no technosignatures, says NASA on 19 November 2025.

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

Comet 3I/ATLAS was first detected in July, sparking a flurry of interest among scientists and in amateur astronomy circles.

Interstellar object 3I/ATLAS, since its discovery in July, has become a center of attention in the scientific community ...

Interstellar comet 3I/ATLAS sweeps past Mars as NASA’s orbiters and Perseverance reveal fresh clues about its chemistry and ...

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.