Celestial Objects

Comets Planets Stars Star Clusters Asteroids Moon Galaxies Constellations Nebulae Interstellar Objects

ZWO Astronomy Photographer of the Year Releases 29-Image Shortlist

A panel of art and astronomy experts will judge the shortlisted work and announce winners on September 17.

Comet Pan‑STARRS Reaches Perihelion Sunday, Closing a Brief Pre‑Dawn Viewing Window

Southern Hemisphere Sky Guide: What to See in April 2026

Webb Data Rules Out Lunar Impact by Asteroid 2024 YR4

Hubble–Euclid Team-Up Unveils Multiscale Portrait of the Cat’s Eye Nebula

‘Ancient Light’ Wins South Downs Dark Skies Astrophotography Contest

Quadrantids Set to Peak Jan. 3–4, but Full Moon Will Mute the Show

Geminid Meteor Shower Peaks Dec. 13–14 With Dark Skies and Up to 150 Meteors an Hour

Beaver Supermoon Lights UK Bonfire Night, Visible Again This Evening

Green Comet Lemmon Briefly Visible Over Bengaluru

Comet Lemmon Stays Bright as Final Easy Viewing Window Closes

Twin Comets Lemmon and SWAN Light Up Northern Skies as Brief Viewing Window Peaks

Twin Green Comets Enter Prime Viewing Week Before Closest Approaches

Comets Lemmon and SWAN Poised for Best Viewing Oct. 20–21

SWAN Nears Oct. 20 as Lemmon Follows, ATLAS Reaches Perihelion

June’s Night Sky Brings Mars-Regulus Encounter, ‘Strawberry Moon’ and Peak Daylight

February Offers Rare Chance to View Seven Planets in Night Sky

Halloween Comet C/2024 S1 Faces Disintegration as It Nears the Sun

Comet Tsuchinshan-ATLAS and Halloween Comet ATLAS Light Up October Skies

Comet Tsuchinshan-ATLAS: Last Chance for a Spectacular Sky Show