The rocket was set to blast off from Cape Canaveral with a U.S. government spy satellite at 11:54 p.m. EDT Wednesday (0354 GMT Thursday), but the countdown stopped at T-minus 7 seconds. ULA said the automated countdown sequencer controlling the rocket in the final moments before liftoff detected an “unexpected condition prior to the engine start sequence.” “The team is currently reviewing all data and will determine the path forward,” ULA said in a statement It was the second abort for the Delta 4-Heavy rocket in the final 10 seconds of a countdown. A launch attempt Aug. 29 was halted...