Science ❯ Astronomy ❯ Comets ❯ Interstellar Objects

3I/ATLAS

Interstellar Comet 3I/ATLAS Shows Extreme Heavy-Water Enrichment, Study Finds

ALMA observations days after perihelion enabled the first deuterium measurement on an interstellar visitor.

ESA Unveils JUICE Video of Interstellar Comet 3I/ATLAS

ALMA Finds Interstellar Comet 3I/ATLAS Strikingly Methanol‑Rich With Unusual Outgassing

ALMA Maps Show Interstellar Comet 3I/ATLAS Is Exceptionally Methanol-Rich

JUICE Releases Best-Yet Image of Interstellar Comet 3I/ATLAS as Data Flow Begins

SPHEREx Detects Late Outburst From Interstellar Comet 3I/ATLAS, Revealing Organic Molecules

Impact Alert Withdrawn as Suspected Asteroid Reidentified as Interstellar Comet 3I/ATLAS

Green Bank Radio Search Finds No Signs of Technology on Interstellar Object 3I/ATLAS

No Alien Signals Detected From Interstellar Visitor 3I/ATLAS in Green Bank Scan

Radio Search Finds No Signal From Interstellar Comet 3I/ATLAS as Hubble Images Twin Jets

Interstellar Comet 3I/ATLAS Clears Earth as Spacecraft Capture Rare Sun‑Side Views

Interstellar Comet 3I/ATLAS Completes Closest Earth Pass at 268.9 Million Kilometers

Putin Calls 3I/ATLAS a Harmless Comet at Marathon Press Conference

Interstellar Comet 3I/ATLAS Makes Safe, Distant Pass by Earth

Interstellar Comet 3I/ATLAS Makes Closest Pass to Earth at About 168 Million Miles

Interstellar Comet 3I/ATLAS Makes Closest Earth Pass at 270 Million Kilometers

Interstellar Comet 3I/ATLAS Nears Earth for Distant Close Approach on Friday

Interstellar Comet 3I/ATLAS to Make Safe Closest Approach Friday at 167 Million Miles

Interstellar Comet 3I/ATLAS Approaches Dec. 19 Flyby at 270 Million Kilometers

New X-Ray and Gemini Images Refine View of Interstellar Comet 3I/ATLAS Before Dec. 19 Earth Flyby