This is the "song" coming from the comet that is now home to a spacecraft. It's the first time in human history that engineers managed to land a spacecraft on a comet.
University of Michigan researchers are part of the European Space Agency's historic project. They'll be analyzing the gases from the comet's core and looking for levels of carbon monoxide and carbon dioxide.
And now that the Philae lander is parked on that comet, we can hear its song.
The Space Agency says the music is caused by oscillations in the magnetic field around the comet.
