| Arcetri Near Earth Object Precovery Program (ANEOPP): A search for NEO images in existing photographic plate archives. Archives used, procedures, personnel involved, sample images. |
| Asteroid 1937 UB Hermes: Efforts on 1937 UB "Hermes", a long-lost Apollo asteroid, rediscovered in 2003, now numbered (69230) Hermes. |
| Asteroids and Comets: Basic information about near Earth asteroids and the hazard they pose to Earth. Asteroid origins, potentially hazardous asteroids, Earth crossing asteroids, Torino impact scale. |
| AstroGuard: News and information about advance warning of asteroid or cometary impacts. |
| DLR-Archenhold Near Earth Objects Precovery Survey (DANEOPS): A project to search photographic plate archives for images of known NEOs. Procedures used, team members, images and measurements of successful precoveries. |
| Dynamics of Small Bodies: Offers essays by a university teacher on near Earth object with unusual orbits, such as 3753 Cruithne, 2002 AA29, hypothetical Earth trojans and quasi-satellites. |
| Earth Satellites for Asteroid Hunters: Data and software useful for identifying artificial satellites which might be mistaken for unknown near-Earth asteroids. |
| FMO Project: A public program offered by the University of Arizona's Spacewatch Project. Volunteers review images to help find NEOs that the computers miss. |
| IAU / Near Earth Objects: Summary of research on near Earth objects, activities of the International Astronomical Union's Working Group on Near Earth Objects (WGNEO). |
| JPL Near-Earth Object Program: NASA NEO Program Office at JPL. Overview, press releases, FAQ, 3D orbit viewer. Research information and statistics, including risk calculations for possible collisions with Earth. |
| NEO Information Centre: Virtual exhibition and online activities on the nature of NEOs and the hazard they pose, what efforts are being made to detect NEOs and avert collisions. |
| NeoDys, Near Earth Objects - Dynamic Site: Searchable database of near Earth asteroids, risk calculations for possible collisions with Earth, orbit calculation software. |
| Ondrejov NEO Program: Activities at Ondrejov Observatory, Czech Republic, for photometry and astrometry of NEOs. Project news, binary near Earth asteroids, people involved, lists of light curve parameters. |
| Toutatis: Ephmeris and data on 4179 Toutatis, including close approaches and animations. |
| Tricky Science of Predicting Asteroid Collisions: Christian Science Monitor article examining asteroid collision science. |
| Understanding the Distribution of Near Earth Objects.: Technical paper describing sources and orbital evolution of near Earth objects, and implications for NEO search efforts. |
| Wikipedia: Near-Earth object: Encyclopedia article covers collision danger, spacecraft access, efforts to catalog NEOs, classifications, impact hazard scales. |