Are We Alone?Track the Answer.
Something is passing through our solar system. Thousands are already watching. Join them.
Why ISO Tracker?
Live Sky Tracking
Watch interstellar visitors cross your sky. Real-time positions, updated every minute.
Observation Planning
Know exactly when and where to look tonight. Custom alerts for optimal viewing from your location.
Community Debate
Cast your vote: alien or natural? Join 12,000+ observers analyzing the evidence together.
Go Beyond Speculation: The Evidence Framework
Not just opinions - a structured approach to evaluate evidence scientifically. Every assessment follows the same rigorous methodology.
Assess Quality
Every piece of evidence is scored against three objective criteria:
Cast Your Verdict
After assessing evidence quality, make your determination:
Track the Evolving Consensus
See how community assessments compare to scientific consensus over time
3I/ATLAS - Observation Window
The next confirmed interstellar object is approaching. Track the evidence as it develops and join the analysis when the observation window opens.
Learn more about 3I/ATLASThe Loeb Scale
A scientific 0-10 classification system for evaluating interstellar objects. Based on Avi Loeb's framework for assessing potential technosignatures.
1I/'Oumuamua
The first confirmed interstellar object. Exhibits non-gravitational acceleration and extreme elongation that challenge natural explanations.
2I/Borisov
Classic cometary behavior with clear coma and tail. Composition matches Solar System comets. Definitively natural.
3I/ATLAS
Newly discovered interstellar object. Assessment pending additional data collection. Shows early signs of anomalous characteristics.
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