Scientists say 3I/ATLAS is moving at speeds above 130,000 mph (210,000 km/h). It is only the third interstellar object ever ...

While most scientists believe it’s a natural comet, one Harvard astronomer has suggested its unusual features could hint at ...

Interstellar comet 3I/ATLAS is expected to reappear soon after moving out of the Sun’s glare, allowing astronomers and skywatchers to observe its path and study its rare interstellar origins.

Comet 3I/ATLAS has baffled astronomers after showing a mysterious acceleration no one can explain - sparking fresh debate ...

A rare green Hallowe’en comet will be visible in the night sky over the next few weeks before it vanishes for 1,300 years.

Mysterious Interstellar Comet 3I/ATLAS, a rare visitor from beyond our Solar System, will make its closest approach to Earth ...

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

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Is tonight a full moon? Here's when, what time to watch Comet Lemmon and zooming fireballs in the sky from Taurid meteor ...