Two things explain why you aren’t jetting across the country at the speed of sound: cost, and noise. Forty-eight years after the Concorde made its first flight, supersonic commercial aircraft remain enormously complex and prohibitively expensive. They also generate an ...

Sir Richard Branson on Tuesday heralded the rebirth of supersonic passenger flights with the unveiling of a prototype aircraft promising 3.5-hour flights from London to New York for an “affordable” $5,000 return, Joinfo.com reports with reference to The Guardian. The ...