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In 1925, explorer Howard Carter miraculously discovered the tomb of Egyptian pharaoh Tutankhamun. Amongst the many treasures that were unearthed were a pair of daggers lodged within the burial wrappings of the teenage king. Researchers were shocked to find that the daggers appeared to be made from iron that came from space. But how did these ancient people achieve this? Part of the "Science's Greatest Mysteries" series.
