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Unfortunately (or fortunately as the case may be) the explosion had occurred in an area so remote, and during a time of such political turmoil, that no researcher pinpointed or even managed to travel to the suspected impact site for more than two decades.(At the epicenter of the explosion lay not a large crater with a "rock" in it, as might be expected, but nothing more than a number of "neat oval bogs." The Tunguska literature generally mentions the bogs only in passing, since Kulik failed in digs there to locate any evidence of a meteorite and went on to examine other aspects of the explosion.
Perhaps ironically, Melton and Schriver, around the same time and on the opposite side of the world, were fruitlessly searching their own "neat, oval bogs" for evidence of a meteor, neither apparently having the knowledge of Kulik's efforts, or vice versa.)It is generally accepted today that the Tunguska event can only be attributed to a rare encounter with a "comet," or incoming body of such a nature that it left no stony or ferrous material, but simply vaporized and scorched the earth below in a rare display of high energy physics.
To explain the Bays, Kobres proposes a similar encounter, albeit of larger proportions and more accurately described as a "near miss." The "Kobres Event" proposes that a "comet," if you like, whipped past the Earth, exchanging enormous energy but not impacting directly to form a typical crater.
It is demonstrable that such an encounter would show an intense flash of heat onto the ground below.
The last twenty years have seen an explosion of evidence that earth has often encountered objects that profoundly alter our environment (Lewis, Rain of Iron and Ice ).
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