Sorry for bumping this very old thread! I found this thread way too late, hehe. I just want to make some things clear here, since I can totally not tolerate fake news. No hard feelings for you people here, of course!
scientists have increased the frequency 10,000 times to make it audible to the human ear.
Which is just wrong, haha. :D ... FYI: I am the man behind A Singing Comet and it was a mixture of a script I've wrote to "convert" all the given data by the scientific institute IGEP to MIDI data and a synth+effects combination I created. The core are the data, yes, but no frequencies were increased. :D
... and also no aliens were involved either, of course ...