S4C

Y Cosmos - Cyfres 1: Yr Haul

Dilyn taith golau o'r haul i'r ddaear wrth i ni geisio darganfod sut mae'r bydysawd yn gweithio. The million year journey of light from the sun to earth as we explore how the un... 

  • Duration48 mins
  • First shown6 Sep 2014
  • Available for 3 months
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Audio DescribedSign Language

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