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Published online by Cambridge University Press: 14 August 2015
The discovery of the afterglows of gamma-ray bursts (GRB) at X-ray, optical and radio wavelengths heralds a new era in the investigation of these objects. This provides a quantum jump in the type of observational information available, providing much more severe constraints on models, and probably represents the light at the end of the tunnel for this long-standing puzzle of astrophysics.