Photo credit: Shengyu Li
Astrophotographer Shengyu Li captured a mysterious blue light during an avalanche on Mount Xiannairi in China, possibly caused by a natural phenomenon called “triboluminescence”. This occurs when light is generated by friction due to ice fragmentation.
On Oct. 27, Chinese astrophotographer Shengyu Li captured rare blue flashes during an avalanche on Mount Xiannairi, possibly caused by "triboluminescence", light generated by friction during ice fragmentation.
Triboluminescence is a phenomenon where light is emitted when… pic.twitter.com/gTyerkvBvs
— Erika (@ExploreCosmos_) November 25, 2024
Triboluminescence causes light to be emitted when certain materials are fractured, scratched, or rubbed. It happens due to the breaking of chemical bonds or the sudden separation of surfaces, which can generate electrical charges. These charges then cause ionization of the surrounding air or excitation of the material itself, leading to visible light emission, or in this case, a blue glow.
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