Students work together to develop a model of Saturn and its rings. They identify what types of materials make up the rings and how they revolve around Saturn. They write a short paragraph describing the rings.

Young scholars explain the observed motion of the planets. The inner ones move back-and-forth across the position of the Sun, while the outer ones usually advance in one direction, but with occasional temporary reversals known as...

Students investigate the meaning of c2 in E=mc2 by measuring the energy delivered by an object falling at different velocities. They state that kinetic energy is the energy of an object in motion. Students illustrate how kinetic energy...

Read a short biography about astronomer Galileo, one of the most significant people in the history of science.

Rice University offers an impressive online project about Galileo Galilei, his life and work. Includes a glossary of terms, a timeline, maps, pictures, primary texts, family letters, and sketches.

This site from The Galileo Project of Rice University provides this discourse on the Ptolemic System that attempted to explain the motion of heavenly bodies. Pictures, charts, and links are all provided for additional information.

Read brief biographies of astronomers who are grouped by time period.

Read about the mathematician and astronomer Galileo Galilei.

This chronicles Galileo's trial for supporting and proving the Copernican view of the solar system. A chronology, biographical information on key figures and pertinent historical documents are available.

This site from the Galileo Project of the Rice University provides a biography of Christopher Clavius in list format. The information is medium in length and worth checking out for information on the subject.

Brief biographical sketch of Galileo Galilei, famous scientist and astronomer whose discoveries include the Tower of Pisa Experiment and the Galilean Telescope.

Discover interesting fun facts about the life of Galileo Galilei, Italian astronomer, mathematician, and physicist.

This site contains information about Galileo and his areas of study.

Invented in ancient Egypt, the plane astrolabe is a tool used by astronomers and navigators to determine time and identifying positions of the Sun, Moon, stars, and planets. Read text or view the video to understand the details of its...

The University of Virginia provides a continuation of a lecture given on astronomer Johannes Kepler, this lecture covers his different works within the field of astronomy.

This image is of Italian scientist Galileo Galilei, a brilliant astronomer who made many contributions to the world of science. Check out our Galileo facts page for more information on this famous scientist.

Explanation of how astronomers and scientist developed the current theories of gravity.

Astronomer

Galileo Galilei (15 February 1564 - 8 January 1642) was a Tuscan (Italian) physicist, mathematician, astronomer, and philosopher who played a major role in the scientific revolution. His achievements include improvements to the telescope...

(1564-1642) Italian physicist, mathematician, astronomer, and philosopher who was one of the great creators of experimental science.

This site from the Lucid Cafe contains a short bibliography of Nicholas Copernicus. The information, though it is brief, is very factual and worth checking out with great links throughout for additional information on related subjects.

This site from SkyServer provides information where students are introduced to Galileo and are transported back in time to learn what "Old Time Astronomy," was all about.

This resources focuses exclusively on astronomy. It's packed with historical facts about space exploration, famous people who pioneered the study of stars and planets. It features chronological list of space exploration, current news,...

An easy-to-read description and history of Ptolemy's geocentric model of the universe. Geocentric means that Ptolemy believed the Earth was the center of the universe.