Constellations Posters Astronomers have been building telescopes both in space and on the ground -- to help further our understanding of the Universe. This series of posters represents some of the most dramatic images made by combining data from the best of modern telescopes.

Chandra Coloring & Activity Book This 28-page coloring and activity book includes general information on X-ray astronomy, Chandra and the STS-93 mission. It also looks at black holes, supernovas, galaxy clusters and more. Activities include mazes, word searches, connect-the-dots, crossword, code break, and word jumble. (pdf)

Galaxy Clusters & the X-ray universe What is the X-ray universe? Why observe the universe with different types of telescopes? These questions and others are answered. Special feature: an acitivity in which you make an X-ray image of a galaxy cluster. (pdf)

Tracking Chandra Tutorial Is Chandra really up there? In case you wondered, take a look at these pictures shot by a 25 cm telescope. Special feature: a tutorial that lets you see what Chandra's orbit looks like using online software. (pdf & html)

Chandra Trading Cards Learn some interesting facts about the Chandra X-ray Observatory and what it studies. The cards are fashioned in an easy-to-use question & answer format.
(pdf & html)

NASA Great Observatories Paper Models Learn more about NASA's eyes in the sky by constructing the paper models contained in the publication "NASA's Great Observatories." The Chandra X-Ray Observatory is one of three observatories featured. (pdf)