SpaceX will launch a big SiriusXM radio satellite to orbit from Florida's Space Coast tonight (June 28), and you can watch the action live.A Falcon 9 rocket topped with the 15,400-pound (7,000 kilograms) SXM-11 spacecraft is scheduled to lift off from Cape Canaveral Space Force Station tonight during a four-hour window that opens at 10:25 p.m. EDT (0225 GMT on June 29).You can watch it live via SpaceX. Coverage will begin about 15 minutes before liftoff.SiriusXM's SXM-10 satellite deploys from the upper stage of a SpaceX Falcon 9 rocket on June 7, 2025. (Image credit: SpaceX)If all goes according to plan tonight, the Falcon 9's first stage will come back to Earth for a landing about 8.5 minutes after launch. It will touch down in the Atlantic Ocean on the SpaceX drone ship "A Shortfall of Gravitas."According to a SpaceX mission description, it will be the 17th flight for this particular booster, which is designated B1085. The Falcon 9's upper stage, meanwhile, will continue carrying SXM-11 to an elliptical geosynchronous transfer orbit, where it will be deployed 34.5 minutes after liftoff. SXM-11 will then circularize its distant path around our planet and join SiriusXM's satellite-radio fleet, which currently consists of seven spacecraft.Previous missions for Booster 1085Crew 9 | Fram 2 | RRT-1 | Blue Ghost Mission 1 | SXM-10 | MTG-S1 | EchoStar XXV | 9 Starlink missionsSpaceX has launched three of those spacecraft to date — SXM-8 in June 2021, SXM-9 in December 2024 and SXM-10 in June 2025. All rode to orbit on Falcon 9 rockets.SpaceX has launched 75 Falcon 9 missions so far in 2026. The vast majority of those flights — 80% of them — have been dedicated to building out the company's Starlink broadband megaconstellation in low Earth orbit.