Rare Green Comet Makes Closest Pass Over California, Ending 1,000-Year Journey
A rare green comet made its closest pass over California, marking an event that won’t repeat for 1,000 years. Learn why it’s green and how to view long-period comets.
comet
Interstellar Comet 3I/ATLAS Develops Peculiar Solar Tendril
An interstellar comet, 3I/ATLAS, has developed a mysterious tendril pointing towards the Sun, perplexing astronomers. Learn about this unique celestial event.
Rare Double Comet Sighting: Lemmon & SWAN Brighten 2025 Skies
Don’t miss the rare double comet alert! Comets Lemmon and SWAN reach peak brightness this week in 2025. Learn how to spot them with binoculars.
Interstellar Object 3I/ATLAS Reveals Rare ‘Anti-Tail’
New observations confirm interstellar object 3I/ATLAS has a rare ‘anti-tail.’ Discover what this means for understanding comets from beyond our solar system.