Astronomy ❯ Celestial Events

Comets

Comet Lemmon C/2023 A3 (Tsuchinshan-ATLAS) Comet C/2023 A3 C/2023 A3 Tsuchinshan-ATLAS Comet 109P/Swift-Tuttle Comet Tsuchinshan-ATLAS Tsuchinshan-Atlas Tsuchinshan-ATLAS Comet 3I/ATLAS Observation Techniques C/2025 A6 (Lemmon) Halley's Comet Comet C/2025 A6 (Lemmon) Comet A3 Visibility Comet SWAN Comet C/1861 G1 Thatcher Komet Lemmon ATLAS Comet C/2025 R2 (SWAN) R2 Swan Characteristics Comet 12P/Pons-Brooks C/2026 A1 (MAPS) Comet Tuttle 10P/Tempel C/2026 A1 MAPS C/2023 A3 C/2023 A3 Tsichinshan-ATLAS Comet C/2025 A6 Comet Swan C/2025 R3 (PanSTARRS) Comet 2023 A3 Komet Swan Tempel-Tuttle Tsuchinshan-ATLAS Comet Kreutz Comets Lemmon and SWAN 3I/ATLAS C/2025 A6 Lemmon A3 Comet C/1861 G1 Thatcher Tsuchinshan–ATLAS Historical Comets Comet C/2023 A3 Tsuchinshan-ATLAS Interstellar Comets Upcoming Comets Comet C/2025 R2 (SWAN) C/2025 A6 C/2025 F2 (SWAN) Devil Comet

2026 Sky Guide: Total Eclipse Over Iceland and Spain as NASA Targets Early-Year Artemis II

Soaring demand in Iceland and northern Spain is already forcing eclipse‑chasing travelers to book early.

Geminid Meteor Shower Begins Today, With Peak Expected Dec. 13–14

Cold Moon to Cap 2025 With Final Supermoon on Dec. 4

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 Brighten For Best Views Under Next Week’s New Moon