Live coverage: Ariane 5 blasts off with two Intelsat satellites

Rocket Lab’s light-class Electron launcher is set to take off on its fifth flight from New Zealand, aiming for a 264-mile-high (425-kilometer) orbit with DARPA’s R3D2 technology demonstration satellite.

Fresh off the launch of its last four first-generation satellites, O3b Networks is in the early stages of selecting a builder and launch provider for a new series of spacecraft that will grow the company’s broadband communications capacity ten-fold, O3b’s chief executive said.

Look back on the May 30 launch of a Russian Proton rocket from the Baikonur Cosmodrome in Kazakhstan with this gallery of photos showing the 19-story launcher climbing into the sky with the Yamal 601 communications satellite.