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25 years studying the Big Bang’s afterglow

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 Astronomy   |   Physics   |   Science
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This week marks the 25th anniversary of a Nobel Prize winning discovery: the first image of the cosmic microwave background. This image showed the world what the universe looked like shortly after the big bang, and transformed cosmology. Reporter Davide Castelvecchi asks Nobel Laureate John Mather how the iconic image was taken, and investigates what the cosmic microwave background still has to teach us today.

This is a video version of an audio package produced for the Nature Podcast and broadcast on 26 April 2017. You can listen to the full podcast here: http://www.nature.com/nature/podcast/index-2017-04-27.html

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