So, it was a rare treat indeed in October 2024 when Comet Tsuchinshan-ATLAS was at its peak visibility. Even then, it was difficult to see with the naked eye, especially in light- ...

Large galaxies, like the Milky Way, attract smaller galaxies. Our solar system 's cosmic neighborhood spans 100,000 ...

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

Depending on where a comet originated, it could take hundreds to millions of years to complete a single orbit. Comet Bernardinelli-Bernstein, for example, follows a 3-million-year-long oval-shaped ...

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

About half all comets are from the region known as the Keiper belt. This is a disk aligned with the solar system (but not quite as flat) that lies beyond the orbit of Neptune. The most famous Keiper ...

Most long-period comets, or LPCs, which take over 200 years to complete one orbit around the Sun, remain undiscovered until ...

November's full moon, known as the Beaver Moon, will be the last supermoon of the year, and you can catch it next week.

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

Comet C/2023 P1, Nishimura visible from Earth. Credit: NASA/JPL-Caltech | edited by Space.com Newsom calls special session to ...

This list of commonly confused terms in astronomy will help you better understand the cosmos and the common phenomena we see in the sky.

DART's goal was to examine how well a planetary defense strategy in moving a threatening space rock away from Earth. Hera will examine the collision from a nearby vantage point, providing a different ...