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Doughnut Universe?
Is the universe a doughnut, a pancake, or some other tasty treat? You can head to iPlayer now to discover why the shape of the universe remains such a mystery to science!
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More clips from Space Mysteries: The Sky at Night Meets Curious Cases
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Strange Spirals in the Sky
Duration: 03:30
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Space Penguins!
Duration: 00:57
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Maggie's Favourite Space Sound
Duration: 01:14
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The Sky at Night/Curious Cases crossover is here!
Duration: 01:08
More clips from The Sky at Night
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The Moon's Differing Faces
Duration: 00:45
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Every Gram Counts
Duration: 01:03
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The Astronaut Experience
Duration: 01:17
