A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

The Texas Water Development Board determined a conflict exists with the Marvin Nichols Reservoir being included in a regional ...

Rocky Mountain National Park staff and volunteers invite the public to join them the east side of the park at Park & Ride ...

How, when, and where to look to see Comet C/2023 A3 (Tsuchinshan-ATLAS) after sunset this Wednesday, Oct. 30, with sky charts, before it disappears.

The C/2023 A3 (Tsuchinshan–ATLAS) was only discovered in January last year but astronomers said it would last have been visible when Neanderthals were alive. It has been called “the comet of ...

Comet A3 Tsuchinshan-ATLAS proved to be photogenic as it lit up the early autumn skies of the Northern Hemisphere this month. Comet C/2023 A3 (Tsuchinshan-ATLAS) has not disappointed photographers ...

Comet Tsuchinshan-ATLAS captivated the Northern Hemisphere. Now, Australians have a chance to see the celestial visitor that hasn't passed through our part of the solar system for 80,000 years.

It's name is a mouthful: Com et C/2023 A3 Tsuchinshan-ATLAS. If your focus lately has (understandably) been on recent hurricanes, you may have missed the news about this once-in-a-lifetime event.

Comet C/2023 A3 (Tsuchinshan-ATLAS) time lapse from 1847–1937 MST 13 October 2024. Was able to capture the anti tail (and too many headlights). 85mm lens cropped to 16:9 aspect ratio.

After surviving its solar encounter, Comet Tsuchinshan-Atlas passed closest to Earth on October 12, at a distance of about 70 million kilometers. Since then, it has become visible in the evening sky.

The coma and long tail of comet Tsuchinshan-ATLAS, also called C/2023 A3 (Tsuchinshan–ATLAS), is currently shining at magnitude +0.5. That's well within the grasp of the human eye.