NASA
Nasa: Image Science Center: Ask the Space Scientist
A NASA scientist, Dr. Sten Odenwald, answers many students' questions. Topics include planets, galaxies, black holes, the origin of the universe, and common misconceptions about space.
Enchanted Learning
Enchanted Learning: Zoom Astronomy
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!