http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?docsPerPage%3D100;f17-subject%3DHorsehead%20Nebula Results for your query: docsPerPage=100;f17-subject=Horsehead Nebula Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Horsehead-Nebula-1902/Horsehead-Nebula-1902.dc.xml The Horsehead nebula is a dark interstellar cloud of dust and non-luminous gas situated 1,600 light years away in the direction of constellation Orion. This photographic image was made on January 25, 1900 by Isaac Roberts (1829-1904), an amateur astronomer. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Horsehead-Nebula-1902/Horsehead-Nebula-1902.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/HorseheadNebulaSpaceTelescope/HorseheadNebulaSpaceTelescope.dc.xml The Horsehead Nebula is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which resembles to a horse's head when viewed from Earth. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/HorseheadNebulaSpaceTelescope/HorseheadNebulaSpaceTelescope.dc.xml Thu, 01 Jan 1970 12:00:00 GMT