This is a picture from the Discovery program web site.
Click on image for full size
Courtesy of NASA
NASA has a special program called the Discovery program. The Discovery program tries to send missions into space for low cost. But these missions are making important science discoveries. You may recognize some missions that are part of the Discovery Program:
Shop Windows to the Universe Science Store!
Our online store
includes fun classroom activities
for you and your students. Issues of NESTA's quarterly journal, The Earth Scientist
are also full of classroom activities on different topics in Earth and space science!