Night Sky Tonight (Dec. 21, 2025): Winter Solstice Stargazing, Ursid Meteor Shower Peak, Jupiter’s Glow — and Interstellar Comet 3I/ATLAS
If you’ve been waiting for a “big” skywatching night, Sunday, December 21, 2025 delivers one of the most atmospheric setups of the year: it’s the December solstice, bringing the longest night and shortest day for the Northern Hemisphere—precisely when a thin crescent Moon keeps skies dark for the Ursid meteor shower. And while Jupiter dominates the late evening, skywatchers with the right telescope may still have a shot at a once-in-a-lifetime target: interstellar comet 3I/ATLAS, which made its closest pass by Earth just two nights ago. NASA Science+3Time and Date+3EarthSky+3
