Live coverage: Ariane 5 rocket soars with Sky Muster, Arsat 2

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

A Soyuz rocket took off from French Guiana on Thursday with the SES 15 communications satellite, a craft heading for an orbit more than 22,000 miles over the equator to provide airborne wifi and aeronautical navigation services over the United States.

A Russian-built Soyuz booster arrived at its tropical launch pad in South America on Friday and was joined with a European weather satellite for launch Tuesday night.