Get to know our little part of the vast universe. Learners read about the common and not-so-common facts about each of the planets in the solar system. The interactive lesson includes a large amount of information as well as a quiz to...

Find tools to calculate astronomical distances and sizes, to view various Solar System models, to compare gravity's affect on weight, and more. A good place to find interesting facts, simple animations, and astronomy links to physics and...

This planetarium program allows you to create an accurate model of the solar system with icons or pictures of each planet. You can specify a date in the past or the future, change the viewpoint to any latitude/longitude, and even view in...

A portal to resources on the sun, the Earth's neighboring planets, and the weather in space. Find out why Saturn is the "jewel of the Solar System" and explore what happens when Venus and Mercury make their rare transits across the sun.

A website with various activities for different grade levels covering the subject of space exploration. Activities include building your own solar system, coloring pages, making models, and even a solar system cookbook.

A great description of the global scale circulation and heat energy. Discusses a single-cell model, a three-cell model, jet streams and more.

Where is our Solar System? How far away is the sun? What makes up the sun? Find out all you want to know about our solar system. This is a comprehensive on-line site about space and astronomy. Check out all of the excitement!

Excellent resource for "paper-plate" activities that help simplify various astronomy topics. Learn how to build a "Moon Finder" and "Planet Pointer," and create a paper-plate model that explains the Transit of Venus.

This is a technical site from MIT. It provides data and information from satellites which observe solar winds. Provide 3-D models of the heliosphere and uptodate plots of solar wind data.