NASA has postponed a second burn of the Juno spacecraft that’s on it’s way to Jupiter. NASA decided to postpone a second burn for Sept. 4, 2012 to study the spacecraft’s propulsion system. This delay will not affect the mission timeline.
The firing has been postponed to September 14th because engineers spotted higher than usual pressure in the propulsion system and wanted some time to check it out.
The back to back burns are needed to launch the spacecraft into earths orbit and slingshot it towards the outer solar system.
NASA has said that this decision will not delay Juno’s arrival to Jupiter in 2016 to map it’s gravitational and magnetic fields.