This year we're very excited to work on a documentary series called Universe Unravelled, which explores the work done by researchers at the Stephen Hawking Centre for Theoretical Cosmology and is produced by the Discovery Channel. It reminded us on how much we love learning and writing about cosmology, so we have decided to dedicate this year's advent calendar to the history and mysteries of the Universe. From dark matter to black holes, and from general relativity to the intriguing theory of inflation, it's all there. We hope you enjoy it!
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