Live coverage: Atlas 5 countdown and launch journal

These photos taken Aug. 6 show the liftoff of a SpaceX Falcon 9 rocket with the Israeli-owned Amos 17 communications satellite, backdropped by dreary skies after thunderstorms passed through Cape Canaveral earlier in the day.

Forecasting a future where satellite networks reach into vastly more ships, airplanes, homes and businesses, SES announced Monday it will buy at least seven high-capacity broadband and data relay satellites from Boeing for launch in 2021 into a rarely-used orbit several thousand miles over the equator.

The main engine rumbling to life. Ice shards breaking free. The rocket lumbering off the pad. The battle against gravity being won once again. That was the scene as the Atlas 5 took flight to cap a generation of Global Positioning System satellites.