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What was there before everything started?
Everything started with the Big Bang, the physicists tell us. It represents cosmologists' reconstruction of the 14 billion year story of the universe. But what was there before time and space began? And can you even say that something existed before? Steen Hannestad from the Department of Physics and Astronomy at Aarhus University is trying the next half hour to answer Henrik Prætorius' impossible questions (in Danish).
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