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"The accounts are oddly similar: darting lights in a night sky, a hovering disc, radio interference. How can so many people be &amp;quot;mistaken&amp;quot;? Learn about the evidence for and against alien UFOs and check out some of the stranger tales of contact."^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/space/aliens-ufos/ufo2.htm>