- Near-Earth Asteroid Tracking (NEAT)
Project to autonomously search for near-Earth and Earth-crossing asteroids using a computer controlled telescope, a CCD camera, and NEAT software.
- 99942 Apophis (2004 MN4) Earth Impact Risk Summary
Features a NASA Near Earth Object Program summary table that includes basic information about the hazard for the object, 99942 Apophis.
- NSSDC: Asteroids
Collection of asteroid fact sheets, images, and mission information from NASA.
- Asteroid Radar Research
Provides an overview of the JPL and California Institute of Technology projects and facilities dedicated to tracking asteroids.
- Nine Planets: Asteroids
Guide to how asteroids are classified according to their spectra and position in the solar system.
- Asteroid Watch - JPL NASA
Learn about NASA-sponsored efforts to detect, track, and characterize potentially hazardous asteroids and comets that could approach the Earth.
- Friday the 13th, 2029
Read about how Asteroid 2004 MN4 will come scarily close to Earth on Friday, April 13, 2029, typically considered an unlucky day. Also listen to Dr. Tony Phillips of Science@NASA talk about the occurence.
- FAIR: Future Asteroid Interception Research
Funding for asteroid, NEO, and NEA research projects.
- Science @ NASA: Caveat Impactor
Why an asteroid with almost no chance of hitting Earth made big headlines.
- NOVA: Doomsday Asteroid
Introduction to the brilliant Hale-Bopp and Hyakutake comets.
- Bill Bottke's Asteroid Research
Web page sharing facts about asteroids including how they are formed, how they evolve, and what they are made of. By Bill Bottke, a research scientist with the Department of Space Studies, Southwest Research Institute.
- (1866) Sisyphus
Orbital data for (1866) Sisyphus, the near-Earth asteroid.
- Asteroids - Sky & Telescope
Articles and observing guides for asteroids, the rocky little worlds that can be fascinating to track down.