if this Russian scientist is to be believed: UFO Collided with Tunguska Meteorite to Save Earth. Not!
Unfortunately this chap is unfamiliar with Widmanstätten pattern that is developed in some meteorites. It usually takes an acid etching to expose the interesting geometric lineations he describes as alien symbols (read the linked article and examine the photograph, then compare it to images at the second link) but I suspect prolonged weathering could do something similar.
Thursday, May 28, 2009
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