Detecting Earth-crossing asteroids

Although some 200 Earth-crossing objects had been detected by astronomers, in 1996 the USA launched a government program to detect hazardous comets with the objective of refining the previously crude estimates of the probability of major collisions with such objects.

1. Anticipating environmental crises

1. Protecting against hazards from comets

1. Hazards from comets

1. Earth-Crossing Asteroids How can we detect, measure and deflect them?
2. Near Earth Objects
3. Improving the Detection of Near-Earth Asteroids
4. NEO Basics
5. Asteroid buzzed Earth this weekend
6. Space-Based Infrared Near-Earth Asteroid Survey Simulation
7. NASA-supported search programs that detect and track near-Earth objects
8. Near Earth Asteroid / NEO Classifications Based on Locations
9. Application of GEODSS to detection of earth-crossing asteroids