Main Engine Cut Off

The most recent Starlink mission was flown using Falcon 9 first stage B1049, which has now launched and landed 7 times—launching Telstar 18 Vantage, an Iridium flight, and then 5 batches of Starlink satellites (one of which had 3 Planet satellites on board). SpaceX is well on the way to the often-quoted 10-use milestone which has been a long-standing target of Falcon 9 reusability.

A funny note I brought up in the most recent Off-Nominal episode with Eric Berger: this first stage booster specifically has launched 252 satellites to orbit, which is more than any single company except SpaceX has operating in orbit.