Finn's Take· TL;DRSouthern Utah's dark skies are about to deliver one of the most spectacular astronomical shows of the year. The Geminids meteor shower, considered by many the year's most dazzling meteor shower, is sending more than 100 fast, bright, multicolored meteors streaking across the dark sky, with stargazers potentially seeing up to 120 meteors per hour during its peak on December 13-14 .
The source of the Geminids, 3200 Phaethon, is a curious blue asteroid that reportedly acts like a comet and has puzzled astronomers since its discovery in 1983 . While most asteroids are dull gray to red, 3200 Phaethon is blue, a rarity among asteroids, comprising only a small fraction of all asteroids known to scientists .
Known as one of the best and most reliable annual spectacles, the Geminid meteor shower has been recorded for nearly 200 years, with the first recorded observation from a riverboat on the Mississippi River in 1833, and it's grown even stronger because Jupiter's gravity has tugged the stream of particles from 3200 Phaethon closer to Earth over the centuries .
For the best viewing, find a spot well away from city or street lights, and dress for chilly December temperatures. Lie flat on your back with your feet facing south, and while looking up, take in as much of the sky as possible . Meteors can appear in any part of the sky, but if you trace their paths backward, they all converge near the Geminids' radiant in the constellation Gemini, close to the bright star Castor .
The Geminid meteor shower peaks all night on December 13-14, 2025, and the waning crescent moon won't interfere with these meteors this year . Since the radiant rises in mid- to late evening, you can watch for Geminids nearly all night – from late evening until dawn .
Adding to this weekend's celestial excitement is the presence of interstellar comet 3I/ATLAS, making its once-in-a-lifetime journey through our solar system. Comet 3I/ATLAS is the third known object from outside our solar system to be discovered passing through our celestial neighborhood, categorized as interstellar because of the hyperbolic shape of its orbital path .
On December 11, 2025, the comet will pass less than two degrees from the half Moon, and by December 12, 2025, the comet will be more than 90 degrees from the Sun and observable at midnight . At its closest approach on December 19, 2025, 3I/ATLAS will be about 1.8 astronomical units (about 170 million miles, or 270 million kilometers) from Earth .
Following the mighty Geminids is the Ursids annual meteor shower, active from December 17-24, peaking on the night of December 21, sharing the limelight with the shortest day of the year, the winter solstice, with the heavy barrage of fireballs continuing throughout the early morning hours of December 22 .
Like the Geminids, no special equipment or skill is necessary to view the meteor shower. Bundle up, find a place away from the city lights and allow 15-20 minutes for your eyes to adjust to the dark . This remarkable convergence of celestial events offers Southern Utah residents and visitors an unprecedented opportunity to witness the universe's grandest light show, with clear winter skies providing the perfect backdrop for astronomical wonder.