The comet—traveling about 44 million miles away—was observed from Earth for the first time earlier this month.

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

The Tsuchinshan-ATLAS comet is visible from the Northern Hemisphere this month—and won't be back for another 80,000 years.

The Tsuchinshan-ATLAS comet was first discovered by observers at China’s Tsuchinshan Observatory and an ATLAS telescope in ...

You have just a few weeks left to view the "comet of the century" making its 80,000-year orbit around Earth. Comet C/2023 A3 ...

ATLAS, which should this weekend become a naked-eye object in the post-sunset sky from the northern hemisphere.

Comet C/2023 A3 (Tsuchinshan-ATLAS), the comet some call the ‘comet of the century’, was captured soaring across the sky ...

Several people captured photos of the A3 comet over Cincinnati Thursday evening. It's a rare event that won't be visible for another 80,000 years after this month.

Only discovered in 2023, Comet C/2023A3 Tsuchinshan-ATLAS is visible through the naked eye right now. It won't return for ...

The Oort Cloud is a theorized invisible spherical shell that surrounds the Sun.

Paul Eskridge was walking home from the Minnesota State University campus Tuesday shortly after dusk when he looked up in the ...

The comet will be visible a little higher and a little longer each evening, gradually growing fainter as it moves quickly ...