Lightning’s Origins Traced in Simulation

⊲ Live Science ⊳ A recent simulation study shows how cosmic rays from space trigger a cascading electron avalanche in thunderclouds, producing X‑rays and gamma rays that precede and spark lightning strikes. Computers using data from satellites, ground sensors and high-altitude aircraft reveal how this chain reaction jump‑starts the electrical breakdown and resolves why some radiation flashes occur with little visible light or radio emission.
⊲ Image – Wikimedia ⊳