Falcon Heavy core booster expended during the USSF-52 mission.
It is the seventh flight of the X-37B program. United States Air Force Orbital Test Vehicle is built by Boeing. It's an uncrewed 5000 kg, 8.8 m-long reusable mini-spaceplane capable of autonomous re-entry and landing.
Elliptical Orbit B1064 - Flight Proven ( ) Landing Zone 1 B1084 - Maiden Flight Atlantic Ocean B1065 - Flight Proven ( ) Landing Zone 2