This site provides a detailed description of the Comet Halley. Content includes historical highlights and images.

This site, which is provided for by the University of St. Andrews, gives a detailed history of the Halley family and Edmund Halley's life and contributions to science.

A detailed description of comets, their distinct parts, and the known comets in our solar system. Links are also provided for additional information on related subjects.

Halley's Comet looks fuzzy because of the coma around it.

This comet fact sheet, supplied by the NSSDC, provides a table of information on selected comets, complete with commentary when appropriate. Includes details of missions to observe these comets.

An introduction to comets, including information on their composition, origin, and importance.

This is an amazing photo of Halley's Comet that was taken back in 1910. Halley's Comet is only visible from Earth around every 75 years. For more information on Haley's Comet, check out our fun comet facts for kids.

Read a short biography about Edmund Halley, and find out why the comet bears his name.

A brief biography of the English astronomer, Edmond Halley.

A description of the home of Edmond Halley with some biographical details. Includes details of his life as Astronomer Royal.

A fantastic collection of information about the solar system. Includes information on all of the planets, the moon, the sun, asteroids, comets, meteoroids, and stars. Also find puzzles, a dictionary, quizzes, classroom activities, and...

This site from the National Space Science Data Center provides information on the Giotto mission which was designed to study Comet P/Halley. The spacecraft encountered Halley on March 13, 1986 and approached to within 600 km. This page...

A detailed overview of the history, mythology, and current scientific knowledge of each of the planets and moons in the solar system.

This University of St. Andrews site contains biographical information on the mathematician Menaechmus.

This site from the encyclopedia Wikipedia provides an in-depth timeline of important events in astronomy relating to the solar system are presented here. Links are also provided for additional information on related subjects.

Who was King Kamehameha? This site chronicles the history of the Hawaiian islands through the Kamehameha Dynasty.

Who was King Kamehameha? This site chronicles the history of the Hawaiian islands through the Kamehameha Dynasty.

Contains a lengthy and detailed biography of Alexis Claude Clairaut including information on his relationships to other mathematicians of his day.

This lesson focuses on arithmetic and geometric sequences using several examples and practice exercises.

This site from Wikipedia provides a concise biography on mathematician Alexis Claude Clairaut (1713-1765 CE) gives an overview of his accomplishments. Links are also provided for additional information.