About 3I/ATLAS Discovery Mission
Mission Statement
Welcome to the 3I/ATLAS Discovery Hub - your mission control center for tracking the most mysterious interstellar visitor ever discovered. Join us in unraveling the secrets of this enigmatic comet from another star system.
What is 3I/ATLAS?
3I/ATLAS is the third confirmed interstellar object to pass through our Solar System, discovered on July 1, 2025 by the ATLAS (Asteroid Terrestrial-impact Last Alert System) telescope in Chile. This historic comet is making an unprecedented journey through our cosmic neighborhood, offering scientists a rare opportunity to study pristine material from another star system.
Key Facts: Approximately 7 miles (11.2 km) in diameter - making it the largest interstellar object ever observed. Traveling at over 130,000 mph toward the Sun. Estimated to be 7-14 billion years old, potentially older than our own solar system. Spanish scientists have identified it as a "primordial time capsule" offering insights into the formation of other star systems.
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Scientific Significance
- First interstellar comet to be extensively studied before exiting the inner solar system
- Provides samples of primordial material from the thick disk of the Milky Way
- Contains insights into the formation and evolution of exoplanetary systems
- NASA activated planetary defense protocols (though it poses no threat to Earth)
- Composition analysis may reveal differences from objects formed in our solar system
Observatories & Studies
Multiple world-class observatories are currently studying 3I/ATLAS:
Captured detailed images confirming cometary nature
Analyzing composition and structure
Infrared spectroscopy studies
Trajectory reconstruction using Gaia mission data
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