Comets

Here's an observers' guide to the newly discovered Comet 2025 F2 (SWAN), which is visible in northern skies right now.

The striking Comet C/2025 F2 (SWAN) photograph was captured by astrophotographer Josh Dury at 4:50 a.m. local time on April 9.

Stunning photos show bright comet lighting up the dark skies above ESO's Paranal Observatory, future home of the world's largest telescope.

C/2024 G3 (ATLAS) is one of the few comets on record that became bright enough to be visible in the daytime without optical aid like binoculars or a telescope.

Using the Atacama Large Millimeter Array, astronomers have discovered icy exocomet belts circling 74 different alien planetary systems.

Photographer Josh Dury captured rare Comet C/2024 G3 (Atlas) in a dramatic 'once-in-a-lifetime' image after a challenging chase across UK skies at dusk.

One of the brightest comets in 20 years, Comet 2024 G3 (ATLAS) returns for a close encounter with the sun — but will we be able to see it?

The Vera C. Rubin Observatory's Legacy Survey of Space and Time should spot many new "dark comets" after coming online in July 2025.

Comet ATLAS (C/2024) G3 could be set to wow sky-watchers at the beginning of 2025.

By doubling the number of known "dark comets," astronomers have been able to split them into two camps depending on their location in the solar system.