Most of us would never consider comets as being especially musically inclined, but ESA scientists preparing for tomorrow's historic landing on Comet 67P/Churyumov-Gerasimenko have discovered a strange series of sub-human-hearing oscillations amid particles in its magnetic field. This "cosmic song" is created by micro-particles discharged by the comet that become electrically charged through ionization in a mysterious process not completely understood. These lyrical magnetic oscillations are sung at the 40-50 millihertz range, far below human hearing. Rosetta's Plasma Consortium team was unexpectedly surprised by the phenomenon and is working to unravel the mysterious physics behind this heavenly hit.
Have a listen to the comet recording, its frequency amplified by 10,000 to permit our ears to enjoy.
(Via The Mary Sue)