NASA
Nasa: Solar System Exploration
Enter our solar system to interact with the planets, moons, asteroids, meteors, and more. Investigate with NASA scientists and explore missions related to space exploration. Read facts, compare statistics, look through resources, and...
Other
National Research Foundation: How Far? How Big? How Many?
Using light as our measuring stick in space, science site provides all types of fun facts using light years and seconds as a reference.
Read Works
Read Works: What's Up in Space?
[Free Registration/Login Required] An informational text about outer space. A question sheet is available to help students build skills in reading comprehension.