A huge fireball lighted up thousands of square miles of northern Mexico and southwestern United States. The Allende meteorite is the largest carbonaceous chondrite ever found on Earth. The fireball travelled from south to north. A meteorite show spread over 50 square kilometers. Allende is often described as “the best-studied meteorite in history.” Allende has abundant, large calcium-aluminum-rich inclusions (CAI), which are among the oldest objects formed in the Solar System.
