Boeing's CST-100 Starliner

Mystery Noise In Boeing Starliner: Paranormal Or Technical Glitch?

Recently, a crew member aboard Boeing's CST-100 Starliner reported hearing unusual sonar-like noises emanating from a speaker within the spacecraft. This peculiar sound was only audible through the spacecraft's speaker system, and despite extensive investigations, its origin remains unclear. Starliner crew reports hearing strange "sonar like noises" emanating from their...