Largest cosmic ray telescope

According to Official Guinness Records,

The largest cosmic ray telescope is the Pierre Auger Observatory, which is a vast array of some 1,600 particle detectors arranged across 3,000 km2 (1,158 m2) of western Argentina. It is designed to detect very high energy cosmic ray particles produced by supermassive black holes.

For a complete list of Unknown date records, please visit Unknown date Guinness Records in Argentina.

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• First Pato World Championship
• Largest prehistoric flying bird
• Smallest gun, pistol
• First full-length cartoon
• Most consecutive Dakar rallies completed