Comet 3I/ATLAS Today (Dec. 23, 2025): New Spacecraft Data, X‑Rays, “Radio Signals,” and the Next Big Test at Jupiter
December 23, 2025 — Comet 3I/ATLAS, the third confirmed interstellar object ever seen passing through our solar system, is already on its way out. But the news cycle around it is still very much inbound. In the days following 3I/ATLAS’