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The first supernovae

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Headlined to None 2/12/13

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At phys.org


An illustration of a massive star undergoing a supernova eruption.
(image by Phys.org)

Supernova explosions signal the violent death of massive, but mysterious stars. Professor Heger will speak about the first stars to form after the big bang, nearly 14 billion years ago. These stars have never been observed, but were believed to be more massive, than today's stars. The talk will cover the evolution of these first stars, their supernovae, and how they synthesized the first heavy elements in the universe. 'It is these first stars that started the synthesis of heavier elements, including the oxygen we breathe, the calcium in our bones and the iron used to build cars... The first stars also set the stage leading to the formation of the first galaxies, to the transform the universe from a dark place to the one filled with light that we observe today. The next generation of telescopes may be able to directly observe some of the explosions from these pre-galactic stars.'

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At phys.org


 

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