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

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

Any comet with a period longer than 200 years is known as a long-period comet, and these are the hardest to predict. Most long-period comets pose no threat to Earth.

Explore the universe with news on fascinating discoveries, scientific advancements and more. A comet nicknamed the “Halloween comet” disintegrated on Monday during its closest approach of the ...

The passage of Comet C/2023 A3 presented an opportunity to gain insights into the near-Sun environment and solar space weather.

A geomagnetic storm, the largest supermoon of the year, a comet and an eerie fireball were among the skywatching treats that haunted the night sky of October 2024. October 2024 was quite the treat ...

Jamie Carter is an award-winning reporter who covers the night sky. A family looks in awe as the Comet Tsuchinshan-Atlas, the C/2023 A3 Tsuchinshan-Atlas comet, the ... [+] brightest comet of the ...

U.S. Naval Research Laboratory’s CCOR captured solar CME images, while the LASCO telescope observed comet Tsuchinshan-ATLAS ...

A comet that was hoped to be visible to the naked eye over the coming days has been gobbled up by the sun. The comet, named Comet ATLAS (C/2024 S1), passed its closest point to Earth on October 24 ...