Comed, Shelley, Carreg Rosetta ac Ysbrydion. When will the next major comet arrive? Show more
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Comed, Shelley, Carreg Rosetta ac Ysbrydion. When will the next major comet arrive? Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
