Science ❯ Astronomy ❯ Celestial Objects ❯ Comets

3I/ATLAS

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

Scientists describe the rare interstellar visitor as a natural, volatile‑driven comet posing no risk.

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

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

Interstellar Comet 3I/ATLAS Shows Signs of Global Ice Volcanoes, Study Finds

Interstellar Comet 3I/ATLAS Nears Dec. 19 Earth Flyby as Study Flags Strong Jupiter Perturbation

NASA Unveils Multi‑Mission Views of Interstellar Comet 3I/ATLAS

Radio Detection From 3I/ATLAS Points to Comet Activity as New Images Show Sprawling Jets

China’s Tianwen-1 Releases Close Images of Interstellar Comet 3I/ATLAS as JPL Flags Non‑Gravitational Acceleration

Interstellar Comet 3I/ATLAS Reappears to Earth View as Anomalies Drive Push for Faster Data Releases

3I/ATLAS Nears Perihelion as Agencies Coordinate Tracking and Spacecraft Tail-Sampling Opportunities

Europa Clipper May Skim 3I/ATLAS’s Ion Tail as Interstellar Comet Nears Perihelion

Water Detected From Interstellar Visitor 3I/ATLAS as Perihelion Nears

Mars Orbiters Capture Closest Views of Interstellar 3I/ATLAS as UV Data Reveal Intense Water Outgassing

ESA Mars Orbiter Captures Closest View of Interstellar Comet 3I/ATLAS

New Analysis Says Interstellar Comet 3I/ATLAS Is Far Larger Than First Estimated

Interstellar Visitor 3I/ATLAS Shows Growing Tail as New Study Finds No Parent Star

Gemini Images Show 3I/ATLAS Growing a Tail, Underscoring Natural Comet Status

New Spectra Show 3I/ATLAS Is a Carbon‑Chain–Depleted Interstellar Comet With Weak CN Emission

Webb and SPHEREx Map CO2‑Dominated Coma of Interstellar Visitor 3I/ATLAS

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