US SUPERSONIC JET SOARS TO RECORD 25,040 FEET, FUELS SPEEDY TRAVEL DREAMS

Summary from the TLDR newsletter

Boom Supersonic's XB-1 demonstrator aircraft recently completed its eighth flight and set a new altitude record. It reached an altitude of 25,040 feet during the 54 minute flight and a top speed of Mach 0.82, tying its previous speed record. Boom Supersonic has planned a few more subsonic flights before it will attempt to break the sound barrier. While the XB-1 will be capable of exceeding Mach 1, the company plans to fly its aircraft at Mach 0.94 over land to avoid the disruptive noise caused by sonic booms.