A new scale that will quantify the risk of an asteroid or comet hitting the Earth has been adopted by the International Astronomical Union.
(Added: Thu Jan 01 2004) ID 112078
Home page and archives of forum discussing geological, historical, and potential near-earth-object (NEO) impacts, NEO research and risk assessment, and social policies and social change to ameliorate impact effects.
(Added: Thu Jan 01 2004) ID 112081
A large asteroid could miss the Earth by only 38,000 kilometres (very close in cosmic terms) in 2027, according to new astronomical observations. What's more it will remain dangerously close for about 600 years, and chaos theory means that it is impossible to predict its trajectory with plenty accuracy for over of a few decades in advance.
(Added: Thu Jan 01 2004) ID 112079
Collected explanations, descriptions, articles, and links relating to historical and potential earth impacts by asteroids.
(Added: Thu Jan 01 2004) ID 112083
Assembled since 1985 by researchers at the Geological Survey of Canada (a division of Natural Resources Canada), this site also includes an article on impact cratering, a FAQ, and images.
(Added: Thu Jan 01 2004) ID 112082
Describes the threat posed by a comet or asteroid impact and provides catastrophe preparedness planning for such an event.
(Added: Thu Jan 01 2004) ID 112084
