When a distant galaxy briefly outshines everything around it in high-energy light, astronomers usually know which playbook to reach for. Gamma-ray bursts tend to fall into familiar categories, either ...
Scientists have been left baffled by a 'never–seen–before blast' from a supermassive black hole, 130 million light–years from Earth. The colossal black hole sits at the centre of the spiral galaxy NCG ...
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