What Keeps the Sun Burning?

Could humans evolve to one sex, can eczema be viral and what keeps the sun burning?
11 December 2015
Presented by Chris Smith, Redi Tlhabi

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Could humans evolve to one sex, what is the difference between a hydrogen and an atomic bomb, can eczema be caused by a virus, what keeps the sun burning, are some people more prone to addiction than others, is it possible to have a stroke twice and can fingerprints ever be identicle? Plus in the news, 7 dogs born by IVF.

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