Ticking stellar time bomb identified

'One of the major problems in modern astrophysics is the fact that we still do not know exactly what kinds of stellar system explode as a Type Ia supernova,' says Patrick Woudt, from the University of Cape Town and lead author of the paper reporting the results. 'As these supernovae play a crucial role in showing that the Universe's expansion is currently accelerating, pushed by a mysterious dark energy, it is rather embarrassing'...

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