http://www.rssboard.org/rss-specification 720 XTF Search Results (expand=subject;f1-subject=Observatory (space-based);f2-subject=Compton Gamma Ray Observatory) http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DObservatory%20(space-based);f2-subject%3DCompton%20Gamma%20Ray%20Observatory Results for your query: expand=subject;f1-subject=Observatory (space-based);f2-subject=Compton Gamma Ray Observatory Thu, 01 Jan 1970 12:00:00 GMT Compton Gamma Ray Observatory being released from the Shuttle. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/compton_inSpace/compton_inSpace.dc.xml The Compton Gamma Ray Observatory was launched into orbit aboard the Space Shuttle Atlantis in April 1991. The photograph was taken by a member of the shuttle crew through a window on the Atlantis shuttle as the astronauts use the shuttle arm to release the observatory into orbit. The earth is visible in the background. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/compton_inSpace/compton_inSpace.dc.xml Mon, 01 Apr 1991 12:00:00 GMT