Solar System: Asteroids, Comets and Meteors: Near Earth Objects

Basic information about near Earth asteroids and the hazard they pose to Earth. Asteroid origins, potentially hazardous asteroids, Earth crossing asteroids, Torino impact scale.

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.

Short discussion of Yucatan and Tunguska impact events and current asteroid search programs.

Summary of research on near Earth objects, activities of the International Astronomical Union's Working Group on Near Earth Objects (WGNEO).

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.

Searchable database of near Earth asteroids, risk calculations for possible collisions with Earth, orbit calculation software.

NEO overview, projects, details on selected objects, space missions, news, Gene Shoemaker grant fund.

Christian Science Monitor article examining asteroid collision science.

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.

A search for NEO images in existing photographic plate archives. Archives used, procedures, personnel involved, sample images.

A project to search photographic plate archives for images of known NEOs. Procedures used, team members, images and measurements of successful precoveries.

Technical paper describing sources and orbital evolution of near Earth objects, and implications for NEO search efforts.

Efforts on 1937 UB "Hermes", a long-lost Apollo asteroid, rediscovered in 2003, now numbered (69230) Hermes.

A public program offered by the University of Arizona's Spacewatch Project. Volunteers review images to help find NEOs that the computers miss.

German organization promoting NEO research. News, links, organization aims, history, current activities.

Encyclopedia article covers collision danger, spacecraft access, efforts to catalog NEOs, classifications, impact hazard scales.