As engines are fired, software written and hardware welded to prepare for the first flight of NASA’s Space Launch System , engineers are already running tests in supersonic wind tunnels to develop the next, more powerful version of the world’s most advanced launch vehicle capable of carrying humans to deep space destinations. “Aeronautics leads the way in the design of a new rocket,” said Jeff Bland, SLS discipline lead engineer for Integrated Vehicle Structures & Environments at NASA’s Marshall Space Flight Center in Huntsville, Alabama.