An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an ...

The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

When Comet 3I/ATLAS roared into the solar system this summer, it launched a scientific scramble to study what astronomers ...

Astronomers detect unexplained acceleration in interstellar object 3I/ATLAS as Avi Loeb suggests an artificial 'engine' can't ...

As 3I/ATLAS nears the Sun, scientists debate whether it’s a natural comet or something artificial. Follow its journey and the ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

The interstellar object 3I/ATLAS, also known as C/2025 P1 (ATLAS), has now passed its perihelion, the closest point to the ...

There is no evidence to support the idea that this interstellar object is anything but a comet, but let's double-check.

Manhattan-sized comet 3I/ATLAS — which scientists suspect could have extraterrestrial origins — will reach its closest ...

A Harvard University professor has said that 3I/ATLAS experienced a sudden "nongravitational" acceleration while passing ...

After conjunction and perihelion, the comet has come out from behind the solar glare and the first image shared.

Astronomers are hustling to use interplanetary spacecraft to study the interstellar comet dubbed 3I/ATLAS while the sun is hiding it from Earth ...