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Tunguska, 1908: the explosion that flattened 80 million trees and left no crater — and the eighty years of expeditions, theories and arguments that followed

3 sources

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3 sources

Sources3

  1. 1.

    Tunguska event

    wikipedia.orgArticle

  2. 2.

    The Tunguska Event — NASA ScienceNASA

    science.nasa.govGovernment

  3. 3.

    Leonid Kulik's 1927 expedition photographsWikimedia Commons

    commons.wikimedia.orgArchive