A 'Smoking Gun' for Dinosaur Extinction
NASA JPL article on the Chicxulub crater. An image from the Shuttle Radar Topography Mission shows an elevation feature of the crater. The article gives background information and interpretation of the image.
Astronomy Picture of the Day - Barringer Crater on
Aerial photograph.
Astronomy Picture of the Day - Impact: 65 Million
Computer rendering of Chicxulub crater, from gravity and magnetic field data.
Astronomy Picture of the Day - Manicouagan Impact
Image taken from space shuttle Columbia in 1983.
Chicxulub Scientific Drilling Program
Multinational program to obtain and study core samples.
Crater
A program that relates crater size to projectile size.
Earth Impact Database
Crater names, location, size, and age. Background information, images, FAQ.
Geology 376 - 2001 Field Trip
Travelogue of a geology class field trip to the Barringer meteor crater. Images, crater description, topographic map.
ICE 2002 - Iturralde Crater Expedition
Multimedia journal of a NASA organized expedition to a probable impact crater in the Bolivian Amazon. Background information, daily journal entries, educational materials, science data.
Impact Craters on Earth
Map of crater locations in Canada, crater images, explanation and images of rock altered by impact.
Impact Parameters
Online calculator for cratering effects of hypothetical asteroid impacts.
Impact Structures
Geology, geophysics, and petrology of impact structures (meteorite impact craters) with special focus on the Azuara and Rubielos de la Cérida impact structures (Spain)
Meteor Crater
Official site for the visitors center at the Barringer meteor crater. Short history, animations, visitor information.
Meteor Crater
Images and short explanations of geologic features near the rim of the Barringer meteor crater.
Reuben Johnson's K/T Expedition -- 2001
Background info on the Chicxulub impact crater at the K/T (Cretaceous/Tertiary) boundary with photos of the 2001 NASA/Planetary Society expedition to Belize and Mexico to study and gather ejecta samples.
Solar System Collisions
Online calculator for effects of asteroid impact.
Terrestrial Impact Cratering and Its Environmental
World map of impact sites, details on the Chicxulub site, and details on environmental effects of impacts.
Terrestrial Impact Craters
Text describing formation of impact craters. Images, glossary.
Terrestrial Impact Craters
Background information, images, list of craters, references.
Terrestrial Impact Investigations
Images and descriptions of craters in Africa, research activities of the terrestrial impact cratering research group of the University of the Witwatersrand.
Three Craters in Israel
Investigates the possibility they have been caused by comet fragments.
Traces of Catastrophe
Online book. Detailed introduction and overview of impact processes, crater formation, and shock metamorphism.
Why are impact craters always round?
The answer given in an article from Scientific American.