NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage ...

It has long been assumed that the gases of a comet tail are pushed away from the comet by the pressure of light from the sun. It now appears that many tails are caused by a wind of charged ...

The panic that ensued in 1910 following scientists' bizarre and baseless theories on Halley’s Comet is a testament to just ...

The tail of the C/2020 F3 NEOWISE comet is shown just before midnight on July 14, 2020 from Porteau Cove, B.C. The comet C/2022 E3 is expected to be seen in the Northern Hemisphere this month and ...

ON the 6th inst., with a power of 38 on a 41/4-inch refractor, I observed that this comet had a distinct, though very faint, tail, at a position-angle of about 85° length 131/2′. The radius of ...

The “comet of the century” that was likely last seen by the Neanderthals seemed to develop a physics-defying second tail as ...

Photographers have been sharing their photographs of Comet G3 (ATLAS), which burned bright during January in the southern ...

SHANGHAI -- Chinese scientists have attributed the sudden movement of a boulder on the surface of a comet to a phenomenon ...

A brilliant comet waved its tail above the site of the world's largest telescope as it lit up the night sky last month. Veteran comet hunters have called G3 (ATLAS) the "Great Comet of 2025" due ...

A brilliant comet waved its tail above the site of the world's largest telescope as it lit up the night sky last month. Comet C/2024 G3 (ATLAS) soared through the starry skies above the European ...