a note as to how we know they are different planets would be nice

It kind of already has one. At the top it has a link to the other planet that is located in another named star system. --OuroborosCobra ^talk 18:16, 3 January 2007 (UTC)

i have not seen the episodes. from my point of view they could very well be the same place with two pages. i assume there is info that splits them?

Actually, yes, the information presented in the two episodes indicates that the two planets are not the same, as they were explored at differing times, both times for the "first time", by the same ship no less, suggesting that they are differing places. :) -- Sulfur 19:25, 3 January 2007 (UTC)