Comet 3I/ATLAS has fascinated astronomers and space enthusiasts worldwide as it makes its rare journey through our solar system, captivating researchers with its mysterious origin and ancient makeup.

Comet Lemmon reached its perihelion on November 8, subsequently entering a fading phase, although temporary increases in brightness due to outbursts remain a possibility. An observation on November 8 ...

“Comets are like cats. They both have tails and do what they want,” said comet discoverer David Levy many times. Well, Comet C/2025 A6 (Lemmon) is proving his words true. Most comet-watchers thought ...

Comet Lemmon (C/2025 A6) is making a rare appearance in Earth's skies, after rapidly approaching Earth since its discovery in January The comet reaches its closest approach to Earth in October, ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. More than 80 observers have signed up to track comet 3I/ATLAS (seen here) as part of the U.N.'s ...

Update March 2024: As we predicted last July, Comet 12P/Pons-Brooks is showing some beautiful activity. Comet 12P is projected to be visible to the naked eye around the time of its perihelion passage ...

An ancient comet discovered in our solar system this summer is offering a rare opportunity to learn more about distant planetary systems far beyond the reach of any spacecraft, researchers say. The ...

In the fall of 2023, Unistellar observers joined forces with the Association Française d’Astronomie (AFA) to take another close look at a familiar visitor: Comet 103P/Hartley 2. This tiny but famously ...