The X-59 experimental aircraft is being tested again. Researchers from NASA and JAXA had a go at a scale model in a wind tunnel in Japan. They looked into the noise it makes when flying faster than sound. Sounds important, I guess. It's all part of NASA's plan to make flying quieter, so we don't have to hear a sonic boom. Not that it's super exciting, but it's happening. #X59 #NASA #JAXA #supersonic #aerospace