Science ❯Astronomy

Celestial Events

Meteor Showers Solar Eclipses Eclipses Comets Planetary Alignments Solar Eclipse Moon Phases Lunar Eclipse Lunar Phases Visibility

3I/ATLAS Shows Growing Tail and Rapid Brightening as Evidence Favors a Natural Comet

NASA affirms a natural cometary origin ahead of a Mars flyby that will enable closer study.

Partial Solar Eclipse on Sept. 21–22 Will Be Visible Only in the Southern Hemisphere

Saturn Reaches Opposition Sunday, Offering Brightest View of 2025 and Rare Edge-On Rings

September Equinox Arrives Monday at 18:19–18:20 UTC

Fall Begins Monday at 2:19 p.m. EDT With the 2025 Equinox

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Rare Dawn Conjunction of the Moon, Venus and Regulus Thrills Early Risers on Sept. 19

Saturn Reaches Opposition Sunday With Rare Titan Shadow Transit Overnight

Asteroid 2025 FA22 Makes Safe 800,000-Kilometer Flyby of Earth

Southern Skies to See Deep Partial Solar Eclipse on Sept. 21–22

NASA Confirms 2027’s Longest Total Solar Eclipse as Spain Faces 2026 Planning and Safety Test

Rare Chi Cygnid Meteor Shower Peaks This Weekend With Early-Evening Meteors

New Comet SWAN25B Emerges Bright Near the Sun as Orbit Remains Uncertain

Astrologers Say Mercury Cazimi in Virgo Today Favors Clear Thinking and Conversations

Andromeda Galaxy Team Wins 2025 Astronomy Photographer of the Year as London Exhibition Opens

Moon Brushes Past Saturn as Pre-Dawn Five-Planet Parade Continues

Pisces Blood Moon Total Lunar Eclipse Arrives Tonight as Eclipse Corridor Begins

SwRI Says Interstellar Comet Flybys Are Achievable as 3I/ATLAS Defies Expectations

Total Lunar Eclipse Tonight Will Paint the Moon Red Across Europe, Africa, Asia and Australia

Total Lunar Eclipse on Sept. 7–8 to Deliver 82-Minute ‘Blood Moon’ Across Eastern Hemisphere

Total Lunar Eclipse on Sept. 7 to Be Visible Across Most of Spain