Imagine the Universe!
 

Chandra image showing only calcium

X-ray image showing only the calcium present in Cassiopeia A
(from Chandra X-ray Observatory, in Earth orbit)

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.

DVD Table of Contents
Educator's Index