Sirius XM’s newest satellite has suffered the failure of certain “payload units” following its launch last month, the satellite radio company said in a regulatory filing on Wednesday. The Maxar-built SXM-7 satellite was launched on Dec. 13 by a SpaceX Falcon 9 booster. The spacecraft began in-orbit testing on Jan. 4. “During in-orbit testing of SXM-7, events occurred which have caused failures of certain SXM-7 payload units. An evaluation of […]