NASA Space Science Education Resource Directory:Index of NASA developed science products for use in classrooms and other educational settings.
AdvanceSpace: Space learning portal dedicated to the advancement of space knowledge.
Hotlist: Space Science: Planets, space objects, stars, images, and more
MARS JSC-1 Soil Growth Science Experiment: On-going analysis of growing vegetation in three different types of soil-- Mars simulant, lunar simulant, and Earth sample. Science project for a 7th grade student at Central Middle School in Oroville, Ca.
Mission Control: Space-related links.