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Interstellar Object Impacts on Earth Unlikely in Lifetime

11/18/2025

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Summary

Story summary

Astronomers find interstellar-object impacts on Earth, including 'Oumuamua and 3I/ATLAS, are unlikely within a human lifetime.
However, researchers say it is possible to identify various areas and times for such events.
They estimate that between 1 and 10 interstellar objects about 100 meters across may have struck Earth historically.
They modeled 260 billion synthetic objects and concluded impacts are more likely near the equator and during Northern Hemisphere winter.

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Story summary

Astronomers find interstellar-object impacts on Earth, including 'Oumuamua and 3I/ATLAS, are unlikely within a human lifetime.
However, researchers say it is possible to identify various areas and times for such events.
They estimate that between 1 and 10 interstellar objects about 100 meters across may have struck Earth historically.
They modeled 260 billion synthetic objects and concluded impacts are more likely near the equator and during Northern Hemisphere winter.