Live coverage: Atlas 5 countdown and launch journal

Juno left the Earth atop a United Launch Alliance Atlas 5 rocket on Aug. 5, 2011, beginning its journey to Jupiter atop the most powerful Atlas variant with five side-mounted boosters. It arrives at the gas giant on Monday.

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

A photo gallery shows Thursday night’s successful Atlas 5 rocket launch from Cape Canaveral.