Kecksburg UFO Incident

What really happened in the twilight skies over Kecksburg on Dec. 9, 1965 has been the subject of controversy for nearly 38 years. Did something actually land in the Mt. Pleasant Township community? If so, what was it?

A meteorite? A Russian satellite? An experimental American aircraft? A UFO? The visible, armed military presence that night and subsequent government secrecy have fueled the uncertainty, many say. Still others say, “What uncertainty? Nothing happened that night.”

http://www.ufoevidence.org/documents/doc1299.htm