“A binary planetary system, also known as twin or sister planets, were planets whose features...Binary planetary system
“Sentient planets were planets that were alive. While any planet that supported life could be...Sentient planet
“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
This category has the following 11 subcategories, out of 11 total.