Not supernovae, which are the result of either a white dwarf blowing up or the core of a massive star collapsing upon itself, but a nova - a flash of light resulting from Hydrogen fusion beginning on the surface of a white dwarf resulting from material falling onto it from a companion star. The detection of gamma-rays means that particles are accelerated to really high energies in these explosions, just like in supernovae. Go here and here and here to learn more. Enjoy!
Thursday, October 28, 2010
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