Whatever caused sonic boom, it was not an alien - This is Leicestershire
URL: http://www.thisisleicestershire.co.uk/caused-sonic-boom-alien/story-17838715-detail/story.html
Submitted: Sun Jan 13 2013
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CT: UFOSeek News 2013: Whatever caused sonic boom, it was not an alien - This is Leicestershire
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If the nearest ET was, say, tens of light years away – the nearest star apart from the Sun is about four light years away – I tend to think Seti would probably have picked up their signals by now. So the optimum likely distance may be hundreds or ...