This fun site is a treasure trove for all space buffs. It lists the top ten facts about everything space, ranging from most intriguing extrasolar planets to the top ten facts about the moon, and even the top ten best songs about space. And once you are done with that you can explore the rest of the Space news that the site offers.
Kids Website Reviews - Space Reviews
Besides being a fun place to learn about astronauts and space, this site also has some fun project ideas. You can make a cloud mobile or help astronauts go back to the moon by building a moon habitat - or better still make pollutants from gumdrops and then gobble them up - the possibilities are endless!