Live coverage: Two satellites lift off aboard Ariane 5

United Launch Alliance teams at Cape Canaveral launched an Atlas 5 rocket at 6:13 a.m. EDT (1013 GMT) Thursday with the U.S. Air Force’s fifth Advanced Extremely High Frequency communications satellite. The AEHF 5 satellite will join a network of geostationary relay stations providing secure, jam-resistant video, voice and data links for the U.S. military.

A European Ariane 5 rocket will propel two communications satellites from a standstill to a speed of nearly 21,000 mph in 25 minutes during a launch Friday from French Guiana.

NASA and SpaceX have delayed the launch of the Crew Dragon “Resilience” spacecraft from the Kennedy Space Center until 7:27 p.m. EST Sunday (0027 GMT Monday) to wait for improved downrange weather and sea conditions, and better onshore winds at the launch site.