Coma Jets

Why 3I/ATLAS's 'Non‑Gravitational' Kick Matters

Astronomers say interstellar comet 3I/ATLAS experienced a small acceleration that gravity alone can't explain. Here's what the measurements mean, how jets of gas can push a comet,… Dec 17, 2025

Physics

3I/ATLAS's Moving Anti‑Tail Deepens Mystery

New images and telescope data show interstellar visitor 3I/ATLAS sporting a rare sunward anti‑tail whose orientation has shifted as the object nears its closest approach on 19 Dec… Dec 15, 2025

Physics

3I/ATLAS's Pulsing Jets: A Celestial Heartbeat

Astronomers have observed a steady 16.16‑hour brightness oscillation from interstellar visitor 3I/ATLAS. New analyses show pulsed jets in the coma—not the solid nucleus—are drivin… Dec 02, 2025

Articles about Coma Jets

Why 3I/ATLAS's 'Non‑Gravitational' Kick Matters

3I/ATLAS's Moving Anti‑Tail Deepens Mystery

3I/ATLAS's Pulsing Jets: A Celestial Heartbeat