http://www.rssboard.org/rss-specification 720 XTF Search Results (expand=subject;f1-subject=Observatory (space-based);f2-associated-Lesson=Gamma Ray History) http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DObservatory%20(space-based);f2-associated-Lesson%3DGamma%20Ray%20History Results for your query: expand=subject;f1-subject=Observatory (space-based);f2-associated-Lesson=Gamma Ray History Thu, 01 Jan 1970 12:00:00 GMT Fermi Gamma-Ray Space Telescope after the integration of the burst monitor. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/213572main_Observatory_lg/213572main_Observatory_lg.dc.xml Known as the Gamma-ray Large Area Space Telescope prior to launch, the Fermi telescope includes two primary instruments: the Large Area Telescope with which astronomers can observe and study active galactic nuclei, pulsars, dark matter signatures, and other high-energy phenomena; and the Gamma-ray Burst Monitor to study gamma-ray bursts. This image shows the assembled telescope in the clean room prior to launch. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/213572main_Observatory_lg/213572main_Observatory_lg.dc.xml Thu, 01 Jan 1970 12:00:00 GMT A pair of Vela satellites in the clean room prior to launch. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/vela5b_2/vela5b_2.dc.xml The Vela satellites are stacked one on top of the other in a clean room prior to the launch. The two polyhedron-shaped satellites (with 20 sides) would detach from each other after launch. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/vela5b_2/vela5b_2.dc.xml Thu, 01 Jan 1970 12:00:00 GMT