Bob
Here is a page w recordings vlf radio recordings, the electromagnetic signals that the earth's field gives off.
http://image.gsfc.nasa.gov/poetry/sounds/sounds.htmlIt would be interesting if they compare to what you heard. I think they have been speeded up. Somewhere on the net are similar recordings of the sun. All stars and most planets give off signals. When i spent a few hours listening to a bunch of these, i also got the idea that they may be communicating.
A relatively new theory has magnetic fields and plasma of humingous sizes connecting systems in space:
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We now observe a superabundance of fine filaments across vast reaches of space. In the electrically neutral cosmos claimed by gravity-based cosmology, these filaments find no credible cause. But in plasma experiments with electric discharge, they are predictable.
Nobel laureate Hannes Alfvén, the father of plasma physics, showed that cosmologists are mistaken when they imagine that magnetic fields can be "frozen in" to a plasma. Electric currents are required to sustain cosmic magnetic fields. And now, everywhere we look we see magnetic fields at work: electricity is flowing across immense distances in space. At both the stellar and galactic scales, these currents interact with the magnetic fields they induce to create complex structure-strings of galaxies, galactic and stellar jets, and beautiful bipolar stellar nebulas-all with features never envisioned by gravitational theorists, yet corresponding in stunning detail to plasma discharge formations in the laboratory.
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http://www.rense.com/general61/bbang.htmMS