cryptoexplosion structures

Discusses the discovery of Chicxulub impact crater in Mexico, and tells why the 180 kilometer-wide collision scar is believed to be responsible for the mass extinction on Earth sixty-five million years ago.

Discusses the possibility of the earth being hit by an asteroid or comet, looking at the history of such crashes on the earth, where a cosmic collision is believed to have wiped out the dinosaurs, and studying the recent impact of the comet Shoemaker-Levy 9 on Jupiter in 1994.

Tells the story of the scientific work that went into solving the riddle of what caused the extinction of the dinosaurs, discussing how the theory that the dinosaurs were wiped out by an asteroid has been validated by the discovery of the giant Chicxulub Crater.