Live coverage: Two Americans, one Russian back on Earth from space station

Stymied by Russian government dithering that has indefinitely grounded a launch on a modified Soviet-era missile, Iridium officials say that SpaceX agreed to move up to July the first of seven Falcon 9 launches from California with the company’s next-generation mobile communications satellites.

SpaceX sent a cargo capsule with nearly 5,500 pounds of experiments and supplies on a three-day trip to the International Space Station on Sunday, firing the automated spaceship through low-hanging clouds and into orbit from the same launch pad where Apollo astronauts began voyages to the moon.

SpaceX’s Falcon 9 rocket blasted off Wednesday carrying NOAA’s Deep Space Climate Observatory, the world’s most distant weather satellite heading for a point a million miles from Earth. Launch from Cape Canaveral occurred at 6:03 p.m. EST (2303 GMT).