LHAASO identifies black holes as source of cosmic ray knee phenomenon

Tokyo, Japan (SPX) Nov 18, 2025

The Large High Altitude Air Shower Observatory (LHAASO) has released results that clarify the origin of the knee in the cosmic ray energy spectrum. This feature, recognized by its sharp decline in cosmic ray numbers above 3 PeV, has puzzled researchers for nearly 70 years.

Recent studies published in National Science Review and Science Bulletin reveal that micro-quasars powered by black ho