Night Sky Tonight (December 19, 2025): How to See Interstellar Comet 3I/ATLAS, Catch New Moon Darkness, and Get Ready for the Ursid Meteor Shower
Interstellar comet 3I/ATLAS makes its closest approach to Earth early Friday, passing about 168 million miles away around 1 a.m. EST. The Moon is near its New phase, darkening skies for the year’s final major meteor shower. The comet appears in Leo, near Regulus, and is visible only with telescopes or strong binoculars. No impact risk is reported.