Read MoreA stray research balloon survived 1,000 rounds of ammunition from fighter jets on its travels back in 1998.A stray research balloon survived 1,000 rounds of ammunition from fighter jets on its travels back in 1998.
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Read MoreA stray research balloon survived 1,000 rounds of ammunition from fighter jets on its travels back in 1998.A stray research balloon survived 1,000 rounds of ammunition from fighter jets on its travels back in 1998.