The 200th Atlas-Centaur rocket, history some 52 years in the making, will blast off Tuesday from Cape Canaveral to deliver a U.S. Navy mobile communications satellite into orbit.
The preliminary weather forecast for Tuesday evening’s Atlas 5 rocket launch carrying a Navy communications satellite predicts a 60 percent chance of acceptable conditions, with thick clouds the main threat against flying at 7:43 p.m. EST as scheduled.