Other
Astromador: Astronomia Para Amadores
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,...
Other
Canal Kids: Ciencias (Science for Portuguese Speakers)
Colorful, engagingly written information about astronomy and biology for Portuguese-speaking English language learners. Both subjects are broken down into a broad array of related subtopics. The biology section is particularly helpful...
Other
Hong Kong Space Museum
Besides an introduction to exhibitions and events at the museum, the site provides a guide to stargazing, an astronomy FAQ, space news, virtual tours (see site map) and research resources (including Chinese-English star and constellation...
Smithsonian Institution
Smithsonian Learning Lab: The Universe, an Introduction
Start with the questions all students ask: How big is the universe, how far away are the planets and stars, how did they form and when, how do they move and why? Build on their natural curiosity. The Smithsonian, in cooperation with...
A&E Television
History.com: The Space Race: Interactive Universe
A virtual journey through space offers photos and facts about Earth and its neighboring planets, comets, other celestial bodies of the Solar System, and the Milky Way and Andromeda galaxies.
Other
Nine planets.org: Ptolemy
This site from the University of Arizona provides a background of Ptolemy's profound influence in the areas of astronomy, geography, and cartography. Includes good pictures and related links.
Other
Christopher Crockett: The Astronomy Word of the Week Is "Barycenter"
While astronomers and philosophers have long mused on the possibility of other solar systems, the first planets confirmed to orbit a star other than our Sun weren't found until 1992. The reason it took so long is that it's really hard!...
NASA
Nasa: Astronomy Picture of the Day: Uranus's Moon Ariel
Provides a brief overview of Ariel, one of Uranus's moons. Details how its deep valleys were formed. A NASA astronomy picture of the day.
NASA
Nasa: Astronomy Picture of the Day: Jupiter From Voyager
Taken by Voyager 1 as it passed Jupiter in 1979, this image shows the Great Red Spot, which is a hurricane-like storm that has lasted over 300 years, and is more than three times the size of planet Earth.
Science Buddies
Science Buddies: What Makes the Rings of Saturn?
Saturn is a unique planet because of the many beautiful rings surrounding it. How are all of those rings made? Why is each ring unique?
Science Buddies
Science Buddies: A Puzzling Parallax
Did you know that ancient astronomers could measure the distance to other stars? They could also distinguish between stars and planets. How could they do that without modern technology of telescopes? See if you can discover the link...
Science Buddies
Science Buddies: Catching Stardust
How do astronomers collect stardust? They design and build satellites that are launched into space to collect particles on specially designed panels. Satellites can be sent to orbit around an object of interest: a planet, moon, or comet....
Science Buddies
Science Buddies: Where Did All the Stars Go?
If you live in a big city or urban area it is hard to see many stars at night. In most urban areas only the most brilliant stars, planets and the moon can be seen. This is because of something called light pollution which is the...
Government of Canada
Canadian Space Agency: Mission to Mars
A detailed look at the obstacles and successes in the exploration of the fascinating red planet.
ClassFlow
Class Flow: Astronomy and the Solar System
[Free Registration/Login Required] This flipchart presents the layers of the Sun and the components of the solar system.
NASA
Nasa: Astronomy Picture of the Day: Uranus's Moon Oberon
Brief overview of Oberon, the most distant and second largest moon of Uranus. Includes its discovery and also a few pictures. A NASA picture of the day.
Enchanted Learning
Enchanted Learning: All About Space: Venus
All About Space profiles the planet Venus with information about its size, mass, atmosphere, length of day, and the like. Features include interactive activities and learning exercises.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Superior Ptolemaic Model
A simulation illustrating Ptolemy's geometrical system of explaining the varying speeds and directions of the planets, sun, and moon.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Inferior Ptolemaic Model
This simulation offers an illustration of Ptolemy's orbit for an inferior planet.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Kepler System Model
This site from Open Source Physics offers a file with a simulation of Kepler's theory of planetary motion, tested with the Earth rotating around the sun and another planet of the user's choosing. The download requires Java.
Enchanted Learning
Enchanted Learning: Saturn
Enchanted Learning profiles the planet Saturn with information about size, mass, atmosphere, length of day, and so on. There are also interactive activities and learning exercises.
Cool Math
Coolmath: Science Monster: Earth
Read about the vital statistics, composition, and other facts about our home planet, Earth.
Cool Math
Coolmath: Science Monster: Mars
How much would you weigh on Mars? Learn this information and other cool facts about the red planet, Mars.
Nine Planets
The Nine Planets: Europa
View pictures and links to more information about Jupiter's moon Europa. Links are also provided throughout for additional information on related subjects.