NASA has two words for the future of supersonic travel: Low boom. The aeronautic agency is betting that quieter sonic booms will make travel at faster than the speed of sound more attractive to the consumer set and is aiming at flights that start not with a bang but a sound closer to “a car door closing.” On … Continue reading “Shhhh: NASA is building a quieter supersonic aircraft” NASA has two words for the future of supersonic travel: Low boom.