Live coverage: Dragon completes space station resupply flight

Another batch of 52 Starlink satellites launched late Tuesday from Vandenberg Space Force Base in California, on the way to join SpaceX’s fleet of more than 4,000 spacecraft beaming broadband signals around the world.

Two South Korean Earth-watching satellites will ride Ariane 5 rockets into orbit in 2018 and 2019 after Arianespace beat SpaceX in a competition to launch the spacecraft.

Spaceflight Now’s Stephen Clark reports from Starbase in South Texas as SpaceX prepares the largest rocket in history for a second launch attempt after calling off a launch attempt Monday due to a valve problem.