Russia on Thursday successfully test-launched a new heavy-lift rocket from its Far Eastern space complex, a lift-off that comes after two aborted attempts earlier this week. The first attempt to launch the Angara-A5 rocket from the Vostochny spaceport on Tuesday was cancelled about two minutes before the scheduled liftoff due to a failure of the pressurization system of the oxidizer tank in the central block of the rocket. The second attempted launch on Wednesday was also aborted by the automatic safety system, which registered a flaw in the engine start control mechanism, said Yuri Borisov, h…