What Was the Nedelin Catastrophe and What Happened? The Nedelin catastrophe was a 1960 launch pad explosion of an R‑16 intercontinental ballistic missile at the Soviet Baikonur test range. It occurred during ground tests when the second stage ignited unexpectedly, triggering a fireball that killed Marshal Mitrofan Nedelin and dozens of engineers and soldiers. The Soviet government suppressed the truth for nearly three decades, publicly acknowledging the disaster only in 1989.

A secretive 1960 launch-pad disaster changed the Soviet space race. Curious how an R‑16 test became one of rocketry’s darkest days—and why hypergolic fuels made it worse? Thread👇 #Baikonur #HypergolicPropellants #NedelinCatastrophe #R16 #SovietSpaceProgram