- Get Involved
All Smithsonian museums will be open today, March 6. The National Zoo will open at noon today.Skip navigation
February 29, 1996 – October 30, 1996
Museum: Air and Space Museum
Location: Milestones of Flight, Gallery 100, 1st Floor, Center
The work of NASA's Compton Gamma Ray Observatory, an orbiting telescope launched in 1991 from the Space Shuttle Atlantis, is the focus of this exhibit. The Observatory studies gamma rays emitted by supernovae, pulsars, black holes, and quasars. Gamma rays are a non-visible form of light created by nature's most cataclysmic events.