Don't listen to these. OK, don't say I didn't warn you.
Saturn:
From the YouTube description: "The Cassini spacecraft has been detecting intense radio emissions from the planet Saturn. They come from the planet's aurorae, where magnetic field lines thread the polar regions. These signals have been shifted into the range of human hearing and compressed in time."
Recording from 1860:
Terrifying.
Warning sirens:
Self-explanatory. Just terrifying.
The Bloop:
An unexplained sound from the bottom of the ocean.
