One of the strongest unseen signals the robot has encountered is Jupiter's bow shock: the point where the planet's magnetic field pushes back against a howling wind of incoming particles from the sun, creating something akin to a sonic boom.
While it's true that humans aren't be able to hear sound in space, NASA scientists have converted radio emissions captured by its spacecrafts into sound waves - and the results are quite unsettling.
The macabre roaring and screeching sounds were captured by NASA's Juno spacecraft as it passed through the massive magnetic field.
"Chorus Radio Waves Within Earth's Atmosphere" is the sound of plasma waves rolling through space.
Whatever the case, turning the data into audio makes it sound like screams trying to break through from an ethereal plane.
Saturn appeared to also produce a spooky version of Star Trek-like sound effects thanks to its source of intense radio emissions.
NASA doesn't say which spacecraft recorded these weird radio emissions from Jupiter's largest moon, Ganymede, but it was likely the Galileo spacecraft (which orbited the system for about 8 years).
Uploaded to a special Halloween playlist on Soundcloud, the clips have been generated from data picked up by spacecraft whizzing through the great expanse, such as Juno and the Van Allen Probes. The radio waves from Saturn are closely related to the auroras near the poles of the planet.
Creepy audio taken by Stardust - a NASA mission to study comets - sounds like long fingernails tapping on a window pane.
This Halloween, queue up the chilling sounds of space for trick or treaters, and get ready for an eerie night.