Usually, sunlight makes cometary gases glow green from diatomic carbon (C2) or blue from ionized carbon monoxide (CO+). With ...

Comet 3I/ATLAS, which made a close approach to the sun, has prompted lots of public interest. Kim Kardashian asked NASA's ...

The rare comet 3I/Atlas has been spotted again after several weeks, this time missing its glowing tail — here’s what ...

After briefly escaping from Earth's view during a (very) close approach to the sun on Oct. 30, Comet 3I/ATLAS can finally be ...

Scientists who study comets are struggling to keep up with popular speculation that the interstellar object 3I/ATLAS was sent ...

The comet, called 3I/ATLAS, is the third known interstellar object that has come through our solar system. As it flies deeper ...

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

The comet is the third interstellar object from deep space ever recorded to pass through Earth’s solar system.

Back on planet Earth, and deep inside a pitch-black, sulfuric cave on the Albanian-Greek border, we reported on a study that ...

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

The interstellar comet 3I/ATLAS is predicted to reemerge in the eastern pre-dawn sky on November 11, offering a unique astronomical spectacle.

A few days before its perihelion, the interstellar comet 3I/ATLAS emanated radio signals, captured by South Africa’s MeerKAT ...