NASA astronauts Sunita Williams and Butch Wilmore aboard the ISS reported hearing strange, pulsating noises resembling a sonar ping from the malfunctioning Boeing Starliner capsule. The sounds, first noted in a recording shared by meteorologist Rob Dale, have puzzled both the crew and Mission Control, who acknowledged the noise after Wilmore replayed it for them. This incident comes as the Starliner is set to return uncrewed to Earth on September 6, 2024, while the astronauts will remain in space until February 2025, returning via a SpaceX capsule. The ongoing technical issues with the Starliner, including helium leaks and thruster problems, have raised concerns about the spacecraft's reliability. Despite the unusual sounds, experts note that astronauts occasionally encounter strange noises in space, although the source of this particular sound remains unidentified. The investigation into the noise continues as NASA engineers work to ensure the Starliner's safe return.