Most of the classroom activities have a Student Worksheet which accompanies them. Some activities also use transparencies that are available at http://imagine.gsfc.nasa.gov/docs/teachers/galaxies/transparencies/.
Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.
The Imagine Team
Acting Project Leader: Dr. Barbara Mattson
All material on this site has been created and updated between 1997-2012.