http://www.rssboard.org/rss-specification 720 XTF Search Results (expand=subject;f1-subject=Gamma Ray Burst;f2-type=Artwork;f3-subject=Compact Object) http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DGamma%20Ray%20Burst;f2-type%3DArtwork;f3-subject%3DCompact%20Object Results for your query: expand=subject;f1-subject=Gamma Ray Burst;f2-type=Artwork;f3-subject=Compact Object Thu, 01 Jan 1970 12:00:00 GMT Artist’s visualization of a merging binary system. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Neutron_Star_Merge_H264_High_960x540/Neutron_Star_Merge_H264_High_960x540.dc.xml Gamma-ray bursts are common, yet random, and fleeting events that have mystified astronomers since their discovery in the late 1960s. Shorter bursts (less than two seconds in duration) are thought to be caused by mergers of binary systems with black holes or neutron stars. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Neutron_Star_Merge_H264_High_960x540/Neutron_Star_Merge_H264_High_960x540.dc.xml Thu, 01 Jan 1970 12:00:00 GMT