Sorry Kimba,
Only just noticed this!
Alex with through a VERY LONG space/universe phase, and still is quite enamored! I think we must have about ten different apps,loads of books, and various resources. I will try to help with our favorites...
Apps: these frustrated me the most as the seem to be very hit-or-miss, and not at a great price!
We also have Solar Walk, and it is Gorgeous....but very difficult for young children to navigate, and so overwhelming with detail that I am not sure it is truly worth it for her. Daddy, however, really likes it!
If you are looking for a detailed app, with a lot of info for EL, good pictures and organization? I suggest the Encylclopedia Britannica Kids Solar System App!
A fun app for younger kids, or one slightly older kids can navigate on their own and still learn a lot from is one called iLearn Solar System by Animagik. This is by far Alexs favorite and she can tell you how many moons Saturn has! It has a quiz section as well...
We also have many, many books on the moon and the solar system, but her favorites are the USborne books (called the Solar System) and the spotter cards.
Not sure if the space program in your country has something similar to this program, but I would do just about anything if they would open this program by NASA for homeschoolers! If your kiddos go to a traditional school in the USA, PLEASE mention this to their teachers! It is called the NASA Junior Explorers Program:
http://www.nasa.gov/offices/education/programs/national/nes2/home/index.html