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...

Follow along as Stella Stardust interviews the sun. A fun and informative interview provides scholars with information about the sun. 

Scholars take a journey through space with 16 eye-catching images. Along the way, learners read captions starting with the moon, then move onto asteroids, Mars, and Jupiter.

Go study the universe. Pupils learn seven aspects about astronomy and astronomers. They begin to learn about constellations; distance and motion between objects; gravity; the electromagnetic spectrum; dark matter and energy; and teams of...

A website all about planetary mysteries—it's a one-stop-shop for all things, stars, planets, and space travel. Scholars read an astronomy overview to discover the page's big ideas, then choose from the plethora of resources, including...

A website looks at how we know so much about Mars—telescopes, robots, and spacecraft—and the search for martian life. Following the informational text are three questions that quiz pupils about possible life on Mars. 

Meet some interesting rocks. Learners discover information about the three types of rocks and different rocks that are within each group. They read imaginary interviews with six rocks as each rock tells the story of their formation and a...

This site explores current theories about how the Solar System was created.

This stunning site on the solar system gives a great overview of the planets and our sun. Learn about each object's size, vital statistics, and moons. Then go on for a more in depth look at these objects in the column on the left.

Explore the solar system through this site that includes vivid multimedia resources. Learn the latest scientific discoveries, the history of space exploration, and much more. Site includes videos, graphics, articles, and photographs.

Learn about the Galileo mission in its entirety. Read updates on the mission as well as new picture from the space probe itself.

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.

Amazing Science looks at the Solar System with this FAQ site and lesson plan.

This survey of the planets includes all the basics, size, mass, atmosphere, length of day, and the like. It features interactive activities and learning exercises and compares all of the planets in colorful tables.

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.

Eight hands-on lessons module in which students explore the characteristics of planet Earth, its moons, the sun, the solar system, planets, and the difference between science fact and science fiction.

Constellation of articles, images, diagrams, posters, videos, and more on the subject of the search for planets, particularly Earth-like planets, outside our solar system.

This site provides a free space simulation that lets you explore the universe in three dimensions. There is a forum for teachers and lesson plans that help enhance student use of the simulation. A program must be downloaded in order to...

Explore the mysteries of the black hole! Cool Cosmos presents the answers to the most frequently asked questions about this phenomenon. Kids can click on the easy to use question links to find out more.

Explore some of our most fundamental questions about space exploration with this research overview collected by scientists at the National Science Foundation. Additionally, experience deep space first-hand with telescope interactives.

Find out what the seasons are and how they change. Through the use of excellent graphics, content explores the Earth's orbit around the sun and how sunlight reaches the earth at equinox and the winter solstice.

This site from the Solar System Exploration section of NASA provides an overview of the space mission to Pluto, Charon, and the fringes of our Solar System. It describes the Kuiper Belt, and the objects involved with it, provided links...

This site, which is provided by the National Space Science Data Center of NASA, is a site with detailed information about Pluto, including planned missions to explore the planet in greater detail.

NASA's Jet Propulsion Laboratory at the California Institute of Technology is "the lead US center for robotic exploration of the solar system."