Starlink Launch 4

60 v1.0 satellites reached the 53° shell - but B1056 was lost, the first time a flight-proven Falcon 9 booster failed to land. Incorrect wind predictions caused the descending booster to deviate from the drone ship; it executed a controlled water landing nearby to protect OCISLY but was not recovered. The record 63-day turnaround between B1056's third and fourth flights was the only milestone the flight claimed.