Basics


A tale of two big bangs

In cosmology, “big bang” has two different meanings – and if you want to understand what’s going on, you should be aware of that difference.

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The shape of space

The different space geometries allowed by the big bang models – do we live on a hypersphere?

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The mathematical universe

Why cosmology is not only a matter for astronomers and physicists, but also for mathematicians

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