2009 has been declared the International Year of Astronomy. Keep checking the page listed, as I am sure the resources section will continute to grow.

If you are looking for lesson plans to help celebrate the Year of Astronomy, NASA has a nice collection of materials broken down by grade level.

The Galileo Project also has some nice resources.

intute, a collaborative effort of over 60 institutes of higher learning, the British Library and the British Museum also has some interesting resources.

ThinkQuest is also worth a look.

Kathy Schrock has a list of astronomy links on her page.

Fred Stoss’ “An Astronomical Childrens’ Reader”