The interstellar comet was 1.4 astronomical units away, or roughly 3I/ATLAS provided a touch that the orbit models could no ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from the a European Space Agency orbiter on its ...

The JUICE spacecraft captured its first detailed glimpse of interstellar comet 3I/ATLAS, revealing a glowing coma and ...

Could Comet C/2026 A1 (MAPS) be the next "Great Comet"? Discovered in January, this sungrazing comet may be visible in broad daylight this April.

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

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

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

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

“While 3I/ATLAS is a visitor from interstellar space, travelling from outside the Solar System, its behaviour is completely ...

This newly discovered comet C/2026 A1 (MAPS), a rare Kreutz sungrazer, could blaze brightly in early April — or it could disintegrate entirely. Here's what to know.

On March 6, 1986, the Soviet Union's Vega 1 spacecraft flew by Halley's Comet. [‘On This Day in Space’ Video Series on Space.com] Vega 1 was the first of five missions to fly by Halley's Comet in the ...