In 1908, above the Tunguska taiga, in the interfluve between the Lower Tunguska and the Podkamennaya Tunguska rivers, slightly north of the small Vanavara settlement, an unknown cosmic object exploded—something commonly considered a meteorite. Its secret has not been solved to this day. The first scientific expedition led by Professor Leonid Alekseevich Kulik set off for the site of the catastrophe only nineteen years later.
More than a hundred years have passed, and the cosmic phenomenon repeated itself with localization in approximately the same area; however, this time answers to many questions were found quite quickly.