View a map of the Earth showing the day and night regions at this moment, or from the sun, the noon, the night side, and other points of view in this simulation. Illustrated.

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

Information on solar and lunar eclipses for current year as well as past and future.

This amazing image taken in 2007 shows the Moon passing in front of the Sun. For more information, check out our fun facts about the Sun and fun facts about the Moon.

Ibiblio WebMuseum offers a detailed biography of Michelangelo and links to some of his famous paintings including The Sistine Chapel.

Use the following lithographs to envision the scale of our solar system. View different models of planets at different scales, an infographic about the relative sizes of the planets and distance from the sun, and images of the largest...

View these amazing high-quality images of our solar system from NASA with this lithograph set. Each lithograph contains images, facts, dates, and general information on a particular subject. Background information and teaching tips are...

Take a tour of the Chaco Canyon archaeological site. The map takes you to the many dwellings and important astronomical sites. Virtual tours are available if you have Quick Time.

Fascinating collection of images from NASA, chosen for their historical or aesthetic significance. Images are searchable by subject, by NASA center, and by keyword, and each is available in three sizes. With links to more information...

A plan of the Inca Temple of the Sun in Cuzco, Peru. "The modern structure of the convent of Santo Domingo, built in 1534, is at A, which contains in its construction some remains of the walls of the older edifice. B is a cloister. C, an...

This site, which is provided for by the University of St. Andrews, gives an extensive discussion of Aristarchus' accomplishments in determining the size of the sun and moon and in proposing a sun-centered universe.

This site, which is provided for by the University of St. Andrews, gives an extensive discussion of Aristarchus' accomplishments in determining the size of the sun and moon and in proposing a sun-centered universe.

Basic diagram of a solar eclipse illustrates the relative positions of the sun, moon, and earth.

Resource provides links to maps and path coordinates for every solar eclipse from 1991 through 2050.

This site from Cornell University provides a discussion of how Aristarchus arrived at his conclusions of the distance from the earth to the sun and moon. Also has his methods for determining the size of the moon and the sun.

This site from Cornell University provides a discussion of how Aristarchus arrived at his conclusions of the distance from the earth to the sun and moon. Also has his methods for determining the size of the moon and the sun.

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

An image of "Creation of the Sun, Moon, and Plants", created by Michelangelo Buonarroti in 1511 (Fresco, 280 x 570 cm).

Want to lose weight in a hurry? Just step on a scale on almost any other planet! This page allows you to enter your weight on Earth and it will calculate your weight on all of the other planets, some moons and even some stars. Requires a...

The holy city of Teotihuacan ('the place where the gods were created') is situated some 50 km north-east of Mexico City. Built between the 1st and 7th centuries A.D., it is characterized by the vast size of its monuments - in particular,...

Ibiblio WebMuseum offers a detailed biography of Michelangelo and links to some of his famous paintings including The Sistine Chapel.