Story perspectives

NASA Confirms Fastest Interstellar Visitor 3I/ATLAS

6/30/2026

Summary

Story summary

NASA confirmed the ATLAS object detected on July 1, 2025 as the third interstellar visitor, 3I/ATLAS.
Hubble measured its speed at 210,000 km/h, the fastest recorded for a solar-system visitor.
NASA found a hyperbolic orbit with a 1.8 AU approach and a 1.4 AU perihelion on Oct 30, 2025, posing no threat.
Pre-discovery images from other ATLAS sites and Caltech’s Zwicky Transient Facility (ZTF) confirmed its interstellar origin and cometary coma, showing planetary-defence surveys can detect objects.

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Story summary

NASA confirmed the ATLAS object detected on July 1, 2025 as the third interstellar visitor, 3I/ATLAS.
Hubble measured its speed at 210,000 km/h, the fastest recorded for a solar-system visitor.
NASA found a hyperbolic orbit with a 1.8 AU approach and a 1.4 AU perihelion on Oct 30, 2025, posing no threat.
Pre-discovery images from other ATLAS sites and Caltech’s Zwicky Transient Facility (ZTF) confirmed its interstellar origin and cometary coma, showing planetary-defence surveys can detect objects.