What’s longer than a football field, heavier than a blue whale and powered by six Boeing 747 engines? The Stratolaunch, a rocket-launching airplane that left its hangar for the first time on May 31. The Stratolaunch is designed to carry space rockets to high altitude, where they’re then launched into orbit. The company behind the…

via See the World’s Biggest Airplane Roll Out for the First Time — Tech – TIME