Who or What Is Knocking On His Spacecraft? | NASA's Unexplained Files

China's first astronaut gets a haunting experience as he hears an eerie knocking on the outside of his spaceship's door. There are no faults with his craft, so is he imagining it, or is there someone, or something, on the outside knocking to get in?

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Видео Who or What Is Knocking On His Spacecraft? | NASA's Unexplained Files канала Science Channel