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Discussion starter · a theory from the Credible Theories team

Tunguska was a comet, not a rock

The 1908 Tunguska blast flattened a forest but left no crater, and for several nights afterward the sky over Europe and Asia glowed bright enough to read a newspaper at midnight. Our theory: a piece of a comet, mostly ice and dust, exploded in the air, and its dust lit up the night sky.

What fits

  • No crater and no large meteorite pieces have been found.
  • A cloud of fine dust high in the air fits the glowing nights.

What does not

  • Many scientists now favor a stony asteroid that broke apart in the air, which also leaves no crater.
  • Tiny particles found in the area have been argued both ways.

Your turn: Comet, stony asteroid, or something else?

Read the files first

This is a theory for discussion, labeled as ours. The files linked above say what the record actually shows.

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