Comet 3I/ATLAS is the third ISO ever detected. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

NASA has firmly debunked a Harvard astronomer's suggestion that an interstellar comet passing through our solar system might ...

Right now a comet is hurtling through our solar system at more than 137,000 miles per hour. But it is not just this interstellar object’s speed that has earthly astronomers glued to their telescopes.

As interstellar object 3I/ATLAS approaches its closest point to the Sun next month, the mysterious visitor continues to ...

Gemini South caught Comet 3I/ATLAS “switching on,” as students and astronomers joined to see dust, gas, chemistry from ...

Scientists reported a dramatic rise in Cyanide and Nickel outgassing, which has changed the mysterious object’s color from red to green over the last two weeks ...

The comet will come closest to Earth on Oct. 20. There's hope that it may become bright enough to glimpse with the naked eye.

Comet 3I/ATLAS is an interstellar visitor, unlike others in our Solar System. It follows a path that takes it back to space.

Hubble also captured a dust plume ejected from the Sun-warmed side of the comet and a hint of a dust tail streaming away from the nucleus.

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.