Startups, NASA pursuing supersonic commercial flight
Startups, NASA pursuing supersonic commercial flighthttps://wpnnradio.com/wp-content/themes/movedo/images/empty/thumbnail.jpg150150adminadminhttps://secure.gravatar.com/avatar/790df65a416873c3f0501d984b0b24a2f32bf2af0d1509085b901ade4bbb36e7?s=96&d=mm&r=g
Nearly 20 years after the Concorde made its final commercial flight, new efforts are underway to make supersonic passenger travel viable again. Bill Whitaker reports. source
