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Interstellar Objects

3I/ATLAS Comets 3I/Atlas A11pl3Z Comet 3I/ATLAS Comet 3I/Atlas Comet Characteristics A11pI3Z C/2025 N1 (3I/ATLAS) Comet 2I/Borisov

Interstellar Visitor 3I/ATLAS Shows Comet-Like Tail as Scientists Press Technosignature Protocols

Most observatories still favor a natural cometary origin despite preliminary reports and speculative claims.

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

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

Hubble Captures Sharpest View of Interstellar Visitor 3I/ATLAS, Strengthening Comet Case

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

Mission Studies Spotlight Juno Flyby of Interstellar Comet 3I/ATLAS

ArXiv Study Exposes Daunting Propulsion Demands for 3I/ATLAS Intercept

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

NASA Declares Interstellar Visitor 3I/ATLAS a Natural Comet, Not Alien Spacecraft

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

Largest Interstellar Visitor 3I/ATLAS Confirmed as Active 20-Kilometer Comet

New VLT Observations Reveal Active Interstellar Comet 3I/ATLAS

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

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

ESO’s Very Large Telescope Captures First Spectra of Interstellar Object 3I/ATLAS