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

The first 10 spacecraft for a planned U.S. military mega-constellation launched from California Sunday aboard a SpaceX Falcon 9 rocket, setting in place the keystone for a multibillion-dollar network of hundreds of small satellites to improve defenses against hypersonic missiles and other emerging threats.

OneWeb — three launches into a series of nearly 20 missions to deploy 650 satellites to provide global Internet service — has announced it filed for Chapter 11 bankruptcy protection and reduced its workforce after unsuccessful negotiations for more cash from its largest investor.

A more spacious version of SpaceX’s Dragon cargo capsule linked up with the International Space Station Monday, using a new approach corridor to deliver more than 6,000 pounds of provisions and experiments, a commercial airlock, and a holiday feast for the research lab’s seven-person crew.