An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening ...

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

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in ...

Interstellar comet 3I/ATLAS is briefly out of view as it travels around the sun this week, but researchers and amateur ...

As 3I/ATLAS approached the inner solar system in September, the Nordic Optical Telescope in Spain's Canary Islands recorded a ...

The comet is on what’s known as a hyperbolic trajectory, which means that it doesn’t follow an orbital path around the sun.

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

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

Interstellar comet 3I/ATLAS captivated astronomers with its dramatic passage near the Sun, brightening significantly due to ...

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

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

As the third confirmed interstellar object to pass through our solar system, 3I/ATLAS is prime for new discoveries. It was ...