Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

SpaceX officials have postponed the launch of a Spanish-owned telecommunications satellite from Cape Canaveral planned for this weekend to conduct additional testing on the Falcon 9’s payload fairing pressurization system, the company announced Saturday.

Following deployment, SpaceX will have launched a total of 2,600 Starlink V2 Mini satellites so far this year. Liftoff of the Starlink 11-14 mission from pad 4E at Vandenberg Space Force Base occurred at 1:13 p.m. PST (4:13 p.m. EST / 2113 UTC).

A huge U.S.-built, Canadian-owned communications satellite weighing 15,600 pounds, the heaviest spacecraft of its kind ever launched, is mounted to a Falcon 9 rocket for liftoff early Sunday from Cape Canaveral on a heavy-lifting mission that previously would have required SpaceX to throw away the launcher’s first stage booster.