The 20th year of the Chandra X-ray Telescope was celebrated at the U.S. Space and Rocket Center's planetarium. The speakers were retired Astronaut Eileen Collins, Astrophysicist at the "Chandra X-ray Center Aneta Siemiginowska, "Senior Astrophysicist at the Chandra X-ray center Harvey Tananbaum, and Chandra Project Scientist Dr. Martin Weisskopf. The panel discussion was moderated by Kim Kowal Arcand, "Visualizaton Lead at the Chandra X-ray Center.