Science ❯Astronomy ❯Comets

Interstellar Objects

3I/ATLAS 3I/Atlas Comet 3I/ATLAS 31/ATLAS C/2025 N1 ATLAS 3I-Atlas Comet ATLAS Discovery

JWST Spots CO2‑Heavy Coma on Interstellar Comet 3I/ATLAS

A new preprint reports an unusually high CO2-to-water ratio, prompting follow-up checks by other teams.

Webb and SPHEREx Confirm CO2-Dominated Coma Around Interstellar Comet 3I/ATLAS

Spacecraft Observations Sought as Loeb Raises Nuclear-Powered Theory for Interstellar Object 3I/ATLAS

Sharp Hubble Images Confirm 3I/ATLAS as Comet; Juno Intercept Study Advances

Hubble and Infrared Observations Show 3I/ATLAS Is an Active Interstellar Comet

Hubble Images Spur Juno Mission Study for Interstellar Comet

Rubin Observatory Captures Pre-Discovery Video of Natural Interstellar Comet 3I/ATLAS

New Analysis Bolsters Natural Cometary Origin for Interstellar Visitor 3I/ATLAS

Probe Theory for Interstellar Comet 3I/ATLAS Divides Researchers as October Perihelion Nears

Hubble Captures Coma of Interstellar Comet 3I/ATLAS as Experts Uphold Natural Origin

High-Resolution Images Illuminate Ancient Interstellar Comet 3I/ATLAS

Gemini North Reveals Active Coma Surrounding Giant Interstellar Comet 3I/Atlas

Researchers Estimate 3I/ATLAS Interstellar Comet Is Over Seven Billion Years Old

Interstellar Comet 3I/ATLAS Unveils Glowing Coma and Tail

Global Telescopes Capture Active Coma of Interstellar Comet 3I/ATLAS

Active Interstellar Comet 3I/ATLAS Set for Safe Solar System Passage

Interstellar Comet 3I/ATLAS Enters Inner Solar System

Interstellar Comet 3I/ATLAS Crosses Solar System on 68 km/s Trajectory

3I/ATLAS Confirmed as Third Interstellar Object, Set to Fly Past Mars