Mysterious noises have been coming from the Mariana Trench, the deepest ocean trench, since 2014. Scientists now finally know ...

This mysterious (and scary) audio track is actually radio waves ... pinging the robot's body with debris. However, it sounds more like a creature rapping at the window sill or scurrying across ...

Keep your ears open this season for spooky things that make creepy noises from which we get imitative, soundalike words. After all, onomatopoeia could be lurking around every corner.