@dw.science: A NASA astronaut has heard a strange pulsating noise on the Boeing Starliner spacecraft. The Starliner has been dogged with multiple issues since its launch. It’s quite likely that the sound is the result of audio feedback between the space station and Starliner, despite the jokes and rumors that the sounds come from aliens or UFOs. After several malfunctions on the Starliner, astronauts Butch Wilmore and Suni Williams are now stuck on the International Space Station. Their weeklong journey will now stretch into months. Mission Control at Johnson Space Center in Houston described the sounds as a "pulsing noise, almost like a sonar ping." (Listen to the trimmed audio) Author: Sushmitha Ramakrishnan #dwscience #scienceontiktok #STEMTok #sciencetok #LearnOnTikTok #Boeing #Starliner #NASA #BoeingStarliner #StarlinerUpdate #Space #Spacetravel #Astronaut #Aliens #ufo