Live coverage: Ariane 5 blasts off with two Intelsat satellites

There’s a lot on SpaceX’s agenda this year if the company can maintain its pace, including refinements of the Falcon 9 rocket to hasten refurbishment between flights and the debut of the long-delayed Falcon Heavy launch vehicle with two side boosters recycled from previous missions, Elon Musk said after last week’s successful liftoff of a previously-flown rocket.

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.

NASA has selected Axiom Space, a Houston-based startup partnering with Boeing and other aerospace contractors, to attach a commercial habitat to the International Space Station and begin constructing an orbiting complex that the company says could ultimately replace the international research outpost.