1. STS-93 Mission Patch
The STS-93 mission patch, designed by the five crew members, depicts Chandra separating from the Space Shuttle Columbia after a successful deployment. A spiral galaxy is shown in the background as a possible target for Chandra observations. The two flags represent the international crew, consisting of astronauts from both the United States and France.
(Illustration: NASA)

2. CXO Patch
NASA's Chandra X-ray Observatory patch portrays the Chandra spacecraft in its orbit above the Earth.
(Illustration: NASA)

3. CXC Logo
The CXC logo delineates a stylized representation of the Chandra spacecraft formed to shape an "X" (for X-ray Astronomy) in the center of the image. The four circles in the background represent the four shells of the Chandra mirror, seen end-on, scaled to show the actual relative sizes and spacings of the shells. The grid at bottom of the image is a representation of the detector grids in the Chandra science instruments.
(Illustration: NASA)

4. Chandra Header & Spacecraft Treatment, Various Versions
(Illustrations: NASA/CXC/SAO)