Space nuclear explosion could disable 99.4% of satellites within 15 days: Study

A study by researchers at the University of Wisconsin–Madison (UW) and Princeton University found that detonating a nuclear weapon in space could disrupt almost everything on Earth due to its devastating impact on satellites. Researchers simulated a 1-megaton nuclear explosion 500 kilometres above the South Atlantic and found that 99.4% of satellites would be disabled by day 15.