Science ❯ Astronomy ❯ Celestial Objects

Interstellar Objects

3I/ATLAS A11pl3Z 2I/Borisov Kometen Comet Characteristics Discovery of 3I/ATLAS ʻOumuamua Discovery of Interstellar Objects 'Oumuamua and A11pI3Z A11pI3Z Observation Techniques Milky Way Galaxy 3I/Atlas Comets 1I/'Oumuamua Comet 31/ATLAS Cometary Composition 'Oumuamua Characteristics

Researchers Map Spacecraft Views of Interstellar Comet 3I/ATLAS as Perihelion Nears

Existing spacecraft offer the only close look during the Sun‑blocked perihelion.

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

Water Vapor Spotted in Tail of 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

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

Interstellar 3I/ATLAS and Newcomer C/2025 K1 Head Toward October Perihelions

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

Astronomers Launch Global Observations of Interstellar Comet 3I/ATLAS

Interstellar Comet 3I/ATLAS Unveils Glowing Coma and Tail

New VLT Observations Reveal Active Interstellar Comet 3I/ATLAS

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

Interstellar Comet 3I/ATLAS Enters Inner Solar System

3I/ATLAS Identified as Third Interstellar Visitor With Cometary Activity

Interstellar Object A11pl3Z Crosses Solar System on Hyperbolic Path