The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

Have you seen comet Tsuchinshan-ATLAS yet? If you haven't yet seen the bright, icy space rock that's traveled from the edge ...

How, when, and where to look to see Comet C/2023 A3 (Tsuchinshan-ATLAS) after sunset this Friday, Nov. 1, with sky charts, ...

How, when, and where to look to see Comet C/2023 A3 (Tsuchinshan-ATLAS) after sunset this Thursday, Oct. 31, with sky charts, ...

Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

Above: Takaya Okada (Japan) observes Comet C/2023 A3 with his EVSCOPE2. In the background you can see the comet tracing its ...

Last year, another comet, 12P/Pons-Brooks, drew attention with similar explosions that gave it a horned shape, earning it the ...

Comet ATLAS (C/2024 S1) is due to pass closest to the sun on October 28, and may be visible to the naked eye in the days before and after.

Approaching the sun, the comet gets warmer and its ice turns to gas, combining with its dust to become a long coma that can extend millions of miles. But after this next appearance, astronomers do ...

Writing in the journal Nature Communications, an international team describe how 2I/Borisov’s coma - the nebulous envelope around the nucleus of a comet - polarised light at a higher rate than ...