Speaking of...

The machine has a wing span of 117 metres. By comparison, the world's second-largest plane – the transporter An-225 Mriya – has a wing span of only 84 metres.

Stratolaunch has been built to transport commercial rockets into the low Earth orbit, on their way into space. The max. weight of the machine including cargo is 590 tonnes.

The plane has two fuselages (with room for cockpit, passengers and cargo). The pilots sit in the starboard fuselage, while the port one holds the plane's data systems.