Q&A with Matt Desch, CEO of Iridium (members only)

The first satellite in a new class of ultra-powerful communications satellites for Intelsat lifted off Wednesday aboard the first Ariane 5 flight of the year. Launch from French Guiana occurred at 2320 GMT (6:20 p.m. EST).

A commercial Dragon cargo craft wrapped up a two-day trip to the International Space Station on Monday with a glacial laser-guided final approach before astronauts grasped the supply ship with a robotic arm, completing the refurbished capsule’s second journey to the orbiting research complex.

The first pair of RD-181 rocket engines set to launch on Orbital ATK’s redesigned Antares rocket are in the final stages of acceptance testing in Russia ahead of their export to the United States in early July, officials said.