The Yucatán smoking gun
The Chesapeake Bay surprise
The deep-ocean splash
The detective tools of marine geology
YOUR GOAL
Master of Cosmic scars beneath the ocean floor
007skaty In 1980, Luis and Walter Alvarez linked global iridium spikes to an asteroid impact, later proven by a
007skaty Explore the underwater crater to discover the ancient space impact hidden under the sea.
Chicxulub's kinetic energy: The dinosaur-killing asteroid hit with the force of 100 teratons of TNT, which is over a billion times more powerful than the Hiroshima atomic bomb.
A large bowl-shaped cavity in the ground or on the surface of a planet. In 1978, geophysicists discovered a 110-mile-wide example of this geological feature buried beneath the Yucatán Peninsula.
How does the buried Chicxulub crater rim visibly affect the landscape on land in Mexico?
What rare element, abundant in asteroids, helped scientists identify the 66-million-year-old extinction layer?
Which father-and-son scientist team proposed the asteroid impact extinction theory in 1980?
In what year did geophysicists Antonio Camargo and Glen Penfield first present their Chicxulub discovery?