ENGAGE: SpaceX Set to Debut Newest Falcon 9 Rocket.

The two-stage Block 5 Falcon 9 is designed to take reusability to new heights. SpaceX has landed and re-flown numerous Falcon 9 first stages over the past few years, but none of these individual boosters has launched more than twice. Block 5 first stages, however, are designed to fly 10 times with just inspections between landing and liftoff, and 100 times with some refurbishment involved, SpaceX representatives have said.

“Block 5 basically summarizes all that we learned on reusability,” Hans Koenigsmann, SpaceX vice president of build and flight reliability, said last month during a news conference before the launch of NASA’s Transiting Exoplanet Survey Satellite, which lifted off atop a Falcon 9 Block 4. “It’s a reliability upgrade that combines reliability and reusability.”

This is the 21st Century I’ve been hoping for.