Comets

Halley's Comet Tsuchinshan-Atlas Comet Tempel-Tuttle Visibility Rare Comets Comet C/2023 A3 Comet Tsuchinshan-ATLAS 55P/Tempel-Tuttle Swift-Tuttle Comet Comet A3 Periodic Comets Newly Discovered Comet C/2023 A3 (Tsuchinshan-ATLAS) Comet Swift-Tuttle Tsuchinshan-ATLAS Comet 21P/Giacobini-Zinner Oort Cloud Comets C/2024 S1 ATLAS Comet Kreutz Sungrazers Comet Encke C/2023 A3 Visible Comets Upcoming Comets Composition Orbital Mechanics Historical Observations Physical Properties C/2022 E3 ZTF Swift-Tuttle Comet 12P/Pons-Brooks 109P/Swift-Tuttle Comet Nishimura Observing Comets Celestial Events Green Comets Oort Cloud 12/P Pons-Brooks Devil Comet" with Distinct Gas and Ice Formations Comet 2P/Encke Tempel-Tuttle Comet 144P/Kushida C/1861 G1 Thatcher 1P/Halley Parent Comet Observation Comet 96P/Machholz Comet 169P/NEAT Comet 13P/Olbers C/2023 A3 Tsuchinshan-ATLAS Naked-Eye Comets C/2024 S1 (ATLAS) Non-Periodic Comets Callanish Stones C/2024 S1 Discovery Historical Context Observation Techniques Tsuchinshan–ATLAS Comet A3 (Tsuchinshan-ATLAS)

Rare Planetary Alignments Grace February Skies

Venus, Mars, Jupiter, and Saturn align this week, with a larger seven-planet lineup culminating on February 28.

Leonids Meteor Shower Peaks with Spectacular Night Sky Display

Orionid Meteor Shower Peaks with Stunning Sky Show

Draconid Meteor Shower Peaks Tonight, Offering Rare Evening Viewing

Two Comets to Illuminate Fall Skies, Offering Rare Celestial Show

September's Night Sky Offers Rare Celestial Events

Leonid Meteor Shower to Peak This Weekend

Orionid Meteor Shower To Peak This Weekend

Comet Nishimura Regrows Tail After Solar Storm, Will Be Visible To Naked Eye This Weekend

Perseids Meteor Shower Peaks in Mid-August Providing Stargazers with the Best Meteor Show of the Year