In California, giant Stratolaunch jet flies for first time
https://techxplore.com/news/2019-04-california-giant-stratolaunch-jet-flies.htmlIn California, giant Stratolaunch jet flies for first time | Hacker News
https://news.ycombinator.com/item?id=19659306The world's largest plane just flew for the first time - CNN
https://www.cnn.com/2019/04/13/business/stratolaunch-worlds-largest-plane/index.html