THE man in the moon is humming a tune, but thankfully the noise won't drown out sensors on future missions peeking at the lunar interior.
A steady barrage of small meteorite impacts should cause the moon to "ring", but no seismometers sent to the moon to date have been sensitive enough
to hear it. So Philippe Lognonné at the Institute of Earth Physics of Paris and colleagues decided to work out how loud the ring is.
The team estimated the meteorite population in the solar neighbourhood, and calculated the likely seismic signals that would be created by a range of
meteorite sizes and velocities as they strike the moon.
New Scientist Article
Im sure this is going to kick up a storm with the hollow planet theorists, especially with the Apollo "ringing like a bell" story. None the less i
find this a very interesting article, just think the earth and moon are humming now but we cannot here them, in fact the earth is 1000x louder!
I found this bit interesting too...
The first instrument may be a seismometer proposed for Japan's Selene-2 moon mission, which aims to send a lander to the surface, perhaps as early as
2015.
Does this mean we might actually get some new high res pics of the moons surface!?!? It would be nice to see, especially with modern digital camera
equipment. Good luck to the Japanese! 
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