Live coverage: Japanese navigation satellite launches on H-2A rocket

A replay of the United Launch Alliance Delta 4 rocket launching the Air Force’s Wideband Global SATCOM communications satellite No. 7 from Cape Canaveral, Florida.

SpaceX’s Falcon Heavy rocket lifted off from NASA’s Kennedy Space Center in Florida at 2:30 a.m. EDT (0630 GMT) to begin a three-and-a-half hour mission to deliver two dozen satellites into three distinct orbits. The Falcon Heavy’s two side boosters returned to Cape Canaveral for successful landings, but the center core stage crashed during a landing attempt on SpaceX’s drone ship in the Atlantic Ocean.

A Northrop Grumman Cygnus supply ship — named the S.S. Katherine Johnson for the trailblazing NASA mathematician portrayed in “Hidden Figures” — was loaded with time-sensitive cargo Friday at a launch pad in Virginia for a midday blastoff Saturday toward the International Space Station.