http://www.rssboard.org/rss-specification 720 XTF Search Results (expand=subject;f1-subject=Observatory (space-based);f2-subject=Gerard P. Kuiper Airborne Observatory) http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DObservatory%20(space-based);f2-subject%3DGerard%20P.%20Kuiper%20Airborne%20Observatory Results for your query: expand=subject;f1-subject=Observatory (space-based);f2-subject=Gerard P. Kuiper Airborne Observatory Thu, 01 Jan 1970 12:00:00 GMT Gerard P. Kuiper Airborne Observatory. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/KAOflight/KAOflight.dc.xml For over twenty years, the Kuiper Airborne Observatory (KAO) was operated as the world's only airborne telescope devoted exclusively to astronomical research. KAO was named after the astronomer Gerard P. Kuiper. Carrying a 36-inch reflecting telescope, KAO was a converted C-141 military cargo plane with a 160-foot wingspan. Flying at altitudes of 41,000 to 45,000 feet, above 99 percent of the Earth's infrared-absorbing water vapor, KAO was capable of conducting infrared astronomy. Harvey would have observed from behind the telescope; the telescope was looking out the hole in the roof behind the cockpit. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/KAOflight/KAOflight.dc.xml Thu, 01 Jan 1970 12:00:00 GMT