Formation of the Solar System (Allende meteorite inclusions)
Formación del sistema solar (inclusiones del meteorito Allende)
- Date
- c. 4567 Ma · confidence medium
- Place
- Pueblito de Allende, Chihuahua, Mexico
- Credited to
- Natural event
- Field
- Cosmos & Earth
What was discovered
The calcium-aluminium-rich inclusions of the Allende meteorite are the first solids to condense in the disc around the young Sun: their lead dating marks the Solar System's «time zero».
Planetary event (F5), verified against sources on 25-09-2026.
What it led to
- Formation of the planets
- Age of the Earth