SpaceX successfully launches final C-band satellites and completes Starlink mission.

SpaceX has launched the final two satellites for SES' C-band spectrum clearing plan, which will earn the operator nearly $4 billion in total. SES-18 and SES-19, built by Northrop Grumman, are set to start services in June after using onboard hydrazine-fueled propulsion to reach their geostationary orbital slots. All costs related to the C-band clearing are eligible for reimbursement, using proceeds the Federal Communications Commission raised in 2021 from auctioning off the frequencies to wireless operators.