Scientific Discoveries News 4 December 2025 - 4 January 2026

NEW YORK, January 2, 2026, 12:50 ET Astronomers have measured water streaming from interstellar comet 3I/ATLAS after it passed closest to the Sun, using ultraviolet observations that track hydrogen released as water breaks apart, a report published on Friday said.

NEW YORK, December 29, 2025, 06:44 ET NASA’s Hubble Space Telescope has carried out a new observation of interstellar comet 3I/ATLAS, with the Space Telescope Science Institute’s status report showing a Dec. 27 visit now archived. (STScI visit status report) 

December 15, 2025 — A rare visitor from beyond our solar system is making its final, headline-worthy sweep through the inner neighborhood — and the countdown to its closest pass by Earth is nearly over. Interstellar comet 3I/ATLAS (also designated C/2025 N1 (ATLAS)) will

On December 13, 2025, Comet 3I/ATLAS—the third confirmed interstellar object ever found crossing our solar system—is back in the headlines as astronomers release fresh observations that deepen the mystery (and the science) of this rare cosmic flyby. It’s not just

As of December 8, 2025, interstellar comet 3I/ATLAS (also known as C/2025 N1 (ATLAS)) has gone from an obscure discovery to a global headline-maker. New observations are revealing cryovolcano‑like eruptions, an atmosphere rich in prebiotic molecules, and spectacular images from NASA and ESA ahead of its December 19 close approach to

Published December 7, 2025 Interstellar comet 3I/ATLAS – only the third confirmed visitor ever seen passing through our Solar System from another star – is putting on its biggest show yet this December. As it brightens again after looping behind the Sun,

Interstellar comet 3I/ATLAS – also known as C/2025 N1 (ATLAS) – has just become the most closely watched visitor in the night sky. On 4 December 2025, a wave of new observations and images from NASA and ESA revealed that