Sixty five million years ago the K-T asteroid (Cretaceous-Tertiary) slammed into the Gulf of Mexico. Geologists searching for oil discovered what is believed to be the impact crater; near Chicxulub on Mexico‘s Yucatan Peninsula. Over 80 miles wide the crater rests in shallow ocean, and is credited to KT; estimated to have been at least 10 miles across.
The force was greater than a billion atom bombs. With speed measured in thousands of miles per second, almost as hot as the surface of the sun, KT vaporized everything within hundreds of miles. The blast wave travelled at over 10 miles per second, annihilating any living creature long before the debris even reached them. The intense heat incinerated plant life, our world burned as debris from the initial blast rained down. Thousands upon thousands of blast chunks, fell from the sky. Thick smoke made sure anything left alive could no longer bask in sunlight. Lets not forget the tsunami. Estimated to be at least 1000 feet high, scientists have found evidence of Mexico from that period as far north as Colorado. KT triggered earthquakes and land slides, plunged our world into a global winter, and eradicated 70% of life on earth.
History is a funny thing. Most people can wrap their head around the past three, five, or even ten thousand years. Beyond that history tends to enter the realm of science fiction. We know dinosaurs existed, we see their bones in museums, and learn their names as children. The time of man is a drop in the bucket compared to the millions of years they ruled supreme. KT was nasty business; yet doubt I would be writing this without it.