“A binary planetary system, also known as twin or sister planets, were planets whose features...Binary planetary system
“A breeding planet was a planet utilised by a spacefaring species for the sole function of...Breeding planet
“You may wish to consult The Dark Planet for other, similarly-named pages. Dark planets were...Dark planet
“The brood planet was a world in deep space used by the Chimerons to raise their young. (TV...Brood planet
“A rogue planet was a planet which wandered through space instead of orbiting a star. Mondas...Rogue planet
“Sentient planets were planets that were alive. While any planet that supported life could be...Sentient planet
This category has the following 11 subcategories, out of 11 total.