Live coverage: Ariane 5 blasts off with two Intelsat satellites

NASA expects to spend some $5 billion underwriting development of commercial spacecraft built by Boeing and SpaceX to carry astronauts to and from the space station, ending reliance on the Russians for crew flights and lowering the average cost per seat to around $58 million.

SpaceX crews at Vandenberg Air Force Base in California rolled out a Falcon 9 rocket and lifted it vertical atop its launch pad ahead of a planned blastoff Wednesday with a Spanish radar observation satellite and two test probes for a planned global broadband Internet network.

The 20th flight of a Rocket Lab Electron launcher appeared to run into trouble a few minutes after liftoff at 7:11 a.m. EDT (1111 GMT) Saturday from New Zealand, when video showed the rocket’s upper stage tumbling and shutting off its engine prematurely. The rocket was carrying two commercial BlackSky Earth observation satellites into orbit.