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

The Starlink 17-40 mission will add another 24 broadband internet satellites to SpaceX’s low Earth orbit constellation. Liftoff from pad 4E at Vandenberg Space Force Base occurred at 9:09 a.m. PDT (12:09 p.m. EDT / 1609 UTC)

Boosted by two solid-fueled motors and a hydrogen-burning main engine, a European Ariane 5 rocket took off Thursday from French Guiana with a Japanese military communications payload and a U.S.-built, British-owned broadband satellite, returning to service after a January mission placed two spacecraft in the wrong orbit.

Watch a replay of the launch of a SpaceX Falcon 9 rocket from California carrying Taiwan’s Formosat 5 Earth observation satellite.