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All types of energy meters – for hot and cold water, group heating, steam, gas, electricity, oil and more. Design, meter reading, billing, cash collection and maintenance services available.

A digest of news related to asteroids, comets, and meteors. Monitors changes in impact risk calculations. Includes links to original sources of information.

Descriptions of asteroids, comets, and near Earth objects.

Introduction paper on asteroids and Kuiper Belt objects.

A meeting bringing together scientists studying small solar system bodies. Dates and links of past meetings.

Data from across NASA, compiled at the National Space Science Data Center.

A curriculum prepared by the Yale-New Haven Teachers Institute.

Selected articles, usually with some connection to life on Earth or elsewhere in the solar system.

A telescope has detected what could be the Solar System's 10th planet, Sedna.

A minor body with dual status as both asteroid and comet.

A downloadable Java program for various orbit computations on asteroids and comets.

Group responsible for the naming of asteroids and comets. Description of the naming process, guidelines for submitting name proposals.

Overview of asteroids, comets, and meteors, with special attention to the impact hazard to Earth.

Companion resource to an astronomy textbook, contains links and current news about meteorites and asteroids.

International clearing house for observations of asteroids and comets.

Selected NASA images.

Transcript of the television broadcast, kitchen comet activity, general information on comets.

General information on the object officially known as 2003 VB12. This object is the most distant body known that orbits our Sun.

Interactive 3D orbit visualization for known asteroids and comets.

Data concerning asteroids and comets, in a standard format for use primarily by astronomical observers and mission planners, as well as educators and students.

Link collection covering the Kuiper Belt and Oort Cloud, asteroids, comets, meteors and meteorites, near Earth objects, and impacts.

Fact sheets on asteroids and comets, index to radio broadcasts on related topics. From the McDonald Observatory.

Overview of asteroids, comets, meteors. Images, data, links.

Physics of asteroids, comets and meteoroids. Application with Newton's and Kepler's Laws, kinetic and potential energy.

Official names of features on asteroids as approved by the International Astronomical Union. Data and images for selected asteroids and comets.

Asteroids Ida and Dactyl, Comets Shoemaker-Levy 9 and Halley, representative meteorites.