http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DObservatory%20(space-based);f2-subject%3DVela%205b Results for your query: expand=subject;f1-subject=Observatory (space-based);f2-subject=Vela 5b Thu, 01 Jan 1970 12:00:00 GMT 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 http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/vela5b_5/vela5b_5.dc.xml The Vela satellites provided much information useful to astronomers studying gamma radiation from space. Other Vela satellites operated for approximately one year, but Vela 5b was in service for more a decade, from 1969 to 1979. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/vela5b_5/vela5b_5.dc.xml Thu, 01 Jan 1970 12:00:00 GMT