Boeing Starliner contacted NASA Mission Control and asked them what this strange sound was coming from the Starliner speakers. He held the microphone up to the speaker and a pinging sound or sonar sound came from it. It's very possible this was a radio transmission sent from an alien ship to the spacestation to make contact. Radio waves are primitive to aliens, but when in Rome...do as the Romans do so that they understand one another better.
Scott C. Waring
