Live coverage: Ariane 5 rocket deploys satellites for Australia, India

Intelsat and SES, operators of the two largest fleets of geostationary communications satellites, have ordered 10 spacecraft from Maxar, Northrop Grumman and Boeing for launches beginning in 2022 to replace C-band capacity being transitioned to 5G cellular network services.

The GovSat 1 communications satellite for SES and the government of Luxembourg lifted off from Cape Canaveral’s Complex 40 launch pad at 4:25 p.m. EST (2125 GMT) Wednesday.

China’s Long March 5 rocket — the country’s most powerful launcher — is set for its third flight Friday on a critical validation mission after a core stage engine failure doomed a launch in 2017 and forced a two-and-a-half-year investigation and redesign effort.