Two spectrographs with high-speed cameras recorded a ball for about a second after a ground stroke at 0.9 km.

Mysteries Department. (2026). Two spectrographs with high-speed cameras recorded a ball for about a second after a ground stroke at 0.9 km. [Evidence EVD0D40A6F64B1S]. https://mysteriesdept.com/r/EVD0D40A6F64B1S

@misc{mysteriesdept_evd0d40a6f64b1s,
  title     = {Two spectrographs with high-speed cameras recorded a ball for about a second after a ground stroke at 0.9 km.},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Evidence, catalog key EVD0D40A6F64B1S},
  url       = {https://mysteriesdept.com/r/EVD0D40A6F64B1S}
}