Live coverage: Ariane 5 rocket launches TV broadcast satellites

The launch of five commercial Iridium message relay satellites and a pair of U.S.-German orbiting geophysics probes on a Falcon 9 rocket from California has been delayed three days to May 22, and a week-long schedule slip to May 31 is expected for the next SpaceX flight from Cape Canaveral with an SES communications payload.

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the another set of 10 next-generation satellites for Iridium’s voice and data relay fleet.

The Canadian telecom satellite operator Telesat plans to launch two multipurpose communications spacecraft aboard SpaceX Falcon rockets in 2018, the company disclosed this week in a quarterly earnings announcement.