Messaline

Messaline is a planet were Hath originate from. A unknown entity called The Source (The Doctor's Daughter)|The Source]] is there. The Humans on Messaline are in a war against the Hath to obtain the Source. which turn out to be a terraforming device The Doctor discovers his daughter Jenny there. (DW: The Doctor's Daughter) The Fear Forcast states its very gothic looking and not the nicest planet