Fort Itaipu sentries burned

4 November 1957 · Fort Itaipu, Praia Grande, São Paulo · Military encounter
UNRESOLVED
No accepted explanation
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In the early hours, the day after Sputnik 2, two sentries at the coastal Fort Itaipu saw a bright orange light descend and stop above the fort. They said a wave of intense heat followed and both collapsed with burns. The fort's electricity failed, including the emergency circuits. Brazilian military investigators interviewed the soldiers, and American officials were reported to have joined them.

What was seen

Shape: Bright orange light descending from the sky
Witnesses: 2 sentries; garrison woken by the power failure
Duration: About 3 minutes

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