https://www.reuters.com/article/us-space-exploration-stratolaunch/worlds-largest-plane-makes-first-flight-over-california-idUSKCN1RQ00M

The world's largest aircraft took off over the Mojave Desert in California on Saturday, the first flight for the carbon-composite plane built by Stratolaunch Systems Corp, started by late Microsoft co-founder Paul Allen, as the company enters the lucrative private space market.