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Mission Statement
Welcome to the website for coordinating observations of the recently discovered interstellar object (ISO) 3I/ATLAS! Our intention is to provide a central website for information regarding this ISO. We encourage and facilitate the acquisition of observations and promote collaborations between researchers.
Recent Updates
July 3, 2025
Time to Perihelion
 Mailing List
We are maintaining an email list serv for sharing occasional updates regarding the behavior of 3I/ATLAS and for making announcemenets for short-term transient events that may prompt follow-up observations. If you wish to be added to the list, please send your name, affiliation, and preferred email address through the Email Sign-Up Form.