Science ❯ Astronomy ❯ Celestial 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
Existing spacecraft offer the only close look during the Sun‑blocked perihelion.