An unusual gemstone in one of Tutankhamun's necklaces has apparently been determined to be glass that is older than the earliest Egyptian civilization. This discovery led to the discovery of glass chunks scattered across a remote region of the Sahara desert. The glass was formed at a temperature so hot that only a meteor impact could have caused it. There were no traces of an impact site, though. Thus, scientists have come to the conclusion that there was a Tunguska Event-esque above Ancient Egypt that formed the glass. Others have found evidence of a similar, yet more powerful, airburst above southeast Asia 800,000 years ago.

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