Gemini North tracks changing glow of interstellar Comet 3IATLAS

Tucson AZ (SPX) Dec 16, 2025

Gemini North has obtained new color images of Comet 3I/ATLAS after the interstellar object emerged from behind the Sun on its outbound trajectory from the Solar System. Using the Gemini Multi-Object Spectrograph (GMOS) on the Gemini North telescope at Maunakea in Hawaii, scientists observed the comet on 26 November 2025 to study how it has evolved since perihelion.

The observations were co