In the summer of 1908, an enormous aerial explosion flattens approximately 2,000 square km (5000,000 acres) of pine forest near the Podkamennaya Tunguska River, central Siberia, in Russia.

Several explanations have been given for the so-called Tunguska event.

The prevailing theory is that a 100,000 ton fragment of Encke's Comet, composed mainly of dust and ice, entered the atmosphere at 62,000 mph, heated up, and exploded over the earth's surface creating a fireball and shock wave but no crater.

Alternative explanations of include an encounter with a mini-black hole or "antimatter", or an alien space ship crashing into the earth with the resulting release of energy.

Might this explosion, the force and energy of which is equivalent to 10 to 15 megatons of TNT, have been caused by the experiments of Serbian American inventor and researcher Nikola Tesla?

Let's examine the so-called Tunguska Event, and the particulars of Tesla's life in the first decade of the 20th century.