Comets

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

Space

UN Confirms 3I/ATLAS as Official Planetary-Defence Exercise

The UN has formally designated the interstellar comet 3I/ATLAS as the focus of a global planetary-defence drill, turning an unusual cosmic visitor into a real-world test of humani… Nov 27, 2025

Science

Musk: 3I/ATLAS Could Threaten Humanity

Elon Musk warned on a recent podcast that the interstellar visitor 3I/ATLAS—while almost certainly not aimed at Earth—would be catastrophic if it ever struck the planet. Scientist… Nov 17, 2025

Space

Comet Tracker: Where to See the Comets on Thursday, Oct. 23, 2025

Comets Lemmon (C/2025 A6) and SWAN (C/2025 R2) are visible after sunset in the Northern Hemisphere on Oct. 23, 2025. Binoculars will help reveal their tails; this is a last good v… Nov 12, 2025

Articles about Comets

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

UN Confirms 3I/ATLAS as Official Planetary-Defence Exercise

Musk: 3I/ATLAS Could Threaten Humanity

Comet Tracker: Where to See the Comets on Thursday, Oct. 23, 2025