Science ❯ Astronomy ❯ Celestial Objects

Comets

3I/ATLAS Interstellar Comets 3I/Atlas C/2025 A6 (Lemmon) C/2023 A3 (Tsuchinshan-ATLAS) Observation Techniques C/2025 A6 Lemmon Comet C/2023 A3 Comet 12P/Pons-Brooks Comet Characteristics

Brightening Comet Pan‑STARRS Enters Pre‑Dawn View for Northern Skywatchers

A small angle from the Sun will soon hide it in twilight, making this week the best viewing window.

Rare Comet Pan‑STARRS Now Glows Before Dawn for a Short Northern Viewing Window

ALMA Reveals 3I/ATLAS Is Exceptionally Methanol‑Rich, Indicating a Heterogeneous Interstellar Comet

ALMA Maps Show Interstellar Comet 3I/ATLAS Is Exceptionally Methanol-Rich

NASA Resumes Search for Silent MAVEN Orbiter as Odds of Recovery Diminish

Impact Alert Withdrawn as Suspected Asteroid Reidentified as Interstellar Comet 3I/ATLAS

Potential 'Great Comet of 2026' Set for April 20 Sun Flyby and April 27 Earth Approach

NASA Scientist Proposes 5 BC Comet as Star of Bethlehem in Peer-Reviewed Study

NASA Astronomer Revives Comet as Plausible 'Star of Bethlehem' Candidate

Ursid Meteor Shower Peaks Tonight, The Year’s Final Display

Interstellar Comet 3I/ATLAS Completes Closest Earth Pass at 268.9 Million Kilometers

Interstellar Comet 3I/ATLAS Makes Safe, Distant Pass by Earth

Interstellar Comet 3I/ATLAS Makes Closest Pass to Earth at About 168 Million Miles

Interstellar Comet 3I/ATLAS Makes Closest Earth Pass at 270 Million Kilometers

Interstellar Comet 3I/ATLAS Nears Earth for Distant Close Approach on Friday

Interstellar Comet 3I/ATLAS to Make Safe Closest Approach Friday at 167 Million Miles

Interstellar Comet 3I/ATLAS Approaches Dec. 19 Flyby at 270 Million Kilometers

Gemini North Images Show Faint Green Glow From Interstellar Comet 3I/ATLAS

Scientists Say Interstellar Comet 3I/ATLAS Won't Be Visible During Near Pass

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