Are We Alone?Track the Answer.

Something is passing through our solar system. Thousands are already watching. Join them.

Why ISO Tracker?

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Live Sky Tracking

Watch interstellar visitors cross your sky. Real-time positions, updated every minute.

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Observation Planning

Know exactly when and where to look tonight. Custom alerts for optimal viewing from your location.

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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.

1

Assess Quality

Every piece of evidence is scored against three objective criteria:

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Chain of Custody
Where did this evidence come from? Is the source verifiable?
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Witness Credibility
What's the expertise level of the observer or analyst?
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Technical Analysis
Has it been independently reviewed using scientific methods?
2

Cast Your Verdict

After assessing evidence quality, make your determination:

Track the Evolving Consensus

See how community assessments compare to scientific consensus over time

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Community Sentiment
Real-time aggregate of all user verdicts
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Scientific Consensus
Peer-reviewed assessments from experts
UPCOMING

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/ATLAS

The Loeb Scale

A scientific 0-10 classification system for evaluating interstellar objects. Based on Avi Loeb's framework for assessing potential technosignatures.

0-1: Natural
2-4: Anomalous
5-7: Suspected
8-10: Confirmed

1I/'Oumuamua

4

The first confirmed interstellar object. Exhibits non-gravitational acceleration and extreme elongation that challenge natural explanations.

Discovered 2017View Details →

2I/Borisov

0

Classic cometary behavior with clear coma and tail. Composition matches Solar System comets. Definitively natural.

Discovered 2019View Details →

3I/ATLAS

4

Newly discovered interstellar object. Assessment pending additional data collection. Shows early signs of anomalous characteristics.

Discovered 2025View Details →

Choose Your Role

Start free as a Spectator, or upgrade to contribute evidence and verdicts.

MonthlyAnnual Save up to 33%

Spectator

Free

  • View tracking data
  • Read community analysis
  • Follow ISOs
Get Started

Event Pass

$4.99/mo

  • Everything in Spectator
  • Vote on community debates
  • Observation window alerts
  • Auto-pauses between events
POPULAR

Evidence Analyst

$9.95/mo

  • Everything in Event Pass
  • Submit & assess evidence
  • Cast verdicts with confidence
  • Full year-round access

Ready to Separate Fact from Fiction?

Join thousands of evidence-based analysts tracking interstellar objects.

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About ISO Tracker

ISO Tracker is built by Jamie Watters, a solo founder using AI to build products that matter. As a former enterprise architect turned indie hacker, I created ISO Tracker to bring evidence-based analysis to the study of interstellar objects.

This is one of 10+ products in my portfolio, all built with the mission of demonstrating what one person with the right AI tools can accomplish.

Learn more about my journey

Get in Touch

Have questions, feedback, or want to collaborate? I'd love to hear from you.