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![](http://upload.luquay.com/wikipedia/commons/thumb/7/7c/EtaCarinae.jpg/360px-EtaCarinae.jpg)
Gamma-ray burst progenitors are the types of celestial objects that can emit gamma-ray bursts (GRBs). GRBs show an extraordinary degree of diversity. They can last anywhere from a fraction of a second to many minutes. Image is Eta Carinae, in the constellation of Carina, one of the nearer candidates for a hypernova.