As the Philae probe continues its scientific work on Comet67P, one of the more surprising discoveries to already emerge from the Rosetta mission has been the detection of a cosmic 'song' emitted from the celestial body. While scientists are still trying to determine exactly what causes this mysterious 'melody,' classical music enthusiasts have noticed that it bears a striking resemblance to Gyorgy Ligeti's 1968 composition Continuum for a Harpsichord. You can compare Comet67P's 'tune' with Ligeti's work at ClassicFM.