Q&A with Elon Musk, founder and CEO of SpaceX (members only)

Ten Iridium communications satellites rode a Falcon 9 rocket into orbit Friday from California in the eighth and final launch for Iridium’s upgraded network over the last two years, and the first of around 18 predicted SpaceX missions planned in 2019.

Forecasters predict mostly cloudy conditions and a chance of light rain for Tuesday morning’s scheduled takeoff of a SpaceX Falcon 9 rocket with a space station-bound supply ship, with a 40 percent chance weather could prevent liftoff during an instantaneous predawn launch opportunity.

Rocket Lab’s Electron launcher delivered two all-weather radar Earth observation satellites into orbit for Capella Space Thursday night after liftoff from Wallops Island, Virginia, successfully completing the company’s second flight from the U.S. spaceport.