The newly discovered object dubbed the Great Comet of 2026 may become visible to the naked eye during its close solar pass in April.

Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and ...

Astronomers first spotted comet 3I/Atlas in data collected by the Asteroid Terrestrial-impact Last Alert System (ATLAS) in ...

The comet is now racing away from the sun following a close flyby on Jan. 20.

Check your weather forecast for clear skies, so you don't miss the spectacular astronomical events occurring throughout the ...

Initial analysis suggested the nucleus was approximately 13.7 kilometers wide (roughly city-sized); however, researchers ...

This discovery has drawn interest from both professional researchers and skywatchers because comets are ancient remnants from the early formation of ...

Before we say goodbye to our interstellar visitor, another close encounter is on its way. This one could be course-altering.

The spacecraft-taken image shows interstellar comet 3I/ATLAS shedding gas and dust and offers new insights into the visitor.

Green Bank Telescope rules out alien signals in interstellar comet 3I/ATLAS after rigorous scientific deep search.

Comet 3I/ATLAS is not coming back — and NASA says it is not a threat to Earth — but a new trajectory study argues we could ...

A city-sized green comet, C/2024 E1 (Wierzchoś), is approaching Earth and will soon be ejected into interstellar space, ...