Could a mirror universe exist?

Dr Latham Boyle

Some physicists have been led to consider this possibility by certain puzzling features of the fundamental laws of nature and the observed properties of the universe just after the Big Bang. In one variant of the idea, the laws of nature in the mirror universe are a reflected version of our own laws. In our universe, left-handed particles – like the neutrino – feel the weak force, while right-handed particles do not. But in the mirror universe, the opposite is true. In this variant, our universe and its partner might lie ‘next to each other’, like the two sides of a piece of toast, but might be separated from one another by a fourth dimension of space – represented by the thickness of the toast in this analogy – which…

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All About Space (Digital) - 1 Issue, No. 161

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