A SpaceX Falcon 9 rocket launched the European Commission’s Galileo L12 mission to medium Earth orbit. This is part of its Global Navigation Satellite System (GNSS). The constellation, which now consists of 28 satellites, began operation in 2016. The Falcon 9 first stage booster was expended after its 20th and final flight, but the two payload fairing halves were recovered. This was the 200th launch using flight-proven payload fairings, according to SpaceX.