SpaceX static fire testing anomaly April 20, 2019 resulting in a explosion that destroyed the Demo-1 Crew Vehicle and sent smoke billowing into the skies over Cape Canaveral, FL. Credit: Craig Bailey/Florida Today KenKremer — SpaceUpClose.com & RocketSTEM – 17 July 2019 CAPE CANAVERAL/KENNEDY SPACE CENTER, FL  – SpaceX officials now say that a check valve leaking toxic oxidizer propellant