Hundreds of gamma-ray bursts (GRBs) have been recorded as part of an enormous global effort so extensive it “rivals the catalog of deep-sky objects created by Messier 250 years ago”, astronomers say. Hundreds of gamma-ray bursts (GRBs) have been recorded as part of an enormous global effort so extensive it “rivals the catalog of deep-sky objects created by Messier 250 years ago”, astronomers say. Astronomy Phys.org – latest science and technology news stories