Company pilot Louis Schalk makes the first official flight of the Lockheed A-12, the forerunner of the SR-71 high-speed reconnaissance aircraft, at Groom Lake, Nev. Two earlier hops had been made on April 25 and 26.
While the Space Force is still making long-term plans to establish high-fidelity live and virtual test and training ranges in the coming years, officials say they're also working with operators to identify near-term gaps and quickly field capabilities to address them.

