NASA’s independent review team that investigated the destruction of a SpaceX Falcon 9 rocket and Dragon supply ship shortly after liftoff in June 2015 concluded a design error led to the loss of more than two tons of provisions and equipment heading for the International Space Station.

The United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 8:37 a.m. EDT (1237 GMT) today to deploy a classified satellite in service to the national security of the United States. Follow the mission in our live journal.

NASA astronaut Nick Hague and Roscosmos cosmonaut Alexandr Gorbunov arrived in Florida on Saturday afternoon ahead of their final launch preparations. A flight readiness review occurred on Monday, Sept. 23.