On May 19, 2010, Alun, Steffan wrote:
> Unrhyw syniad oes gair Cymraeg am "supermassive black hole"? Methu
> gweld dim yn y geiriaduron.
Allet ti holi Rhys Morris a Rhodri Evans
http://www.phy.bris.ac.uk/people/morris_r/index.html
http://www.astro.cardiff.ac.uk/contactsandpeople/?page=full&id=131
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