Q&A with Mark Mulqueen, Boeing’s space station program manager

An upgraded version of SpaceX’s Dragon cargo freighter launched Sunday from the Kennedy Space Center in Florida, loaded with 3.2 tons of supplies and experiments in the first of at least nine resupply flights to the International Space Station under a new NASA contract.

Although recovery teams in the Atlantic Ocean have retrieved wreckage from Sunday’s Falcon 9 launch failure, the best clues to the cause of the crash lie in raw data transmitted from the rocket as it disintegrated, SpaceX officials said Wednesday.

The addition of a U.S. Air Force communications satellite has capped the assembly of a 218-foot-tall United Launch Alliance Delta 4 rocket at Cape Canaveral set for liftoff the evening of March 13.