Cosmic microwave background data reveals insights into the period immediately after the Big Bang, while galaxy surveys can also help deepen our understanding of the Primordial Universe.

The hot Big-Bang model doesn’t explain where the Initial fluctuations in the density of the Universe came from, which led to all of the structure that’s in the universe today. Inflation is a mechanism by which you can create structure in the very early universe.

Interviewed for Beyond the Horizon  (EU Research SPR18/P76), Professor Hiranya Peiris talks about the how CosmicDawn project’s work is using different sources of data to investigate the origins of cosmic structure, and test different theories in the laboratory.

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Shining a light on the beginning of the Universe



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