#OTDIH: Kiwi-A, the first nuclear rocket propulsion test under Project Rover, took place at the #NNSS July 1, 1959. Designed and built by @LosAlamosNatLab Kiwi-A demonstrated that hydrogen could be heated in a nuclear reactor to temperatures required for propulsion to space. pic.twitter.com/Sile541sS4

— NNSS (@NNSANevada) July 1, 2019