List of Star Trek planets (G–L)

Gagarin IV – Location of the Federations' Darwin Genetic Research Station. Possibly named after Yuri Gagarin, the first Human in space in 1961.

Gaia – Gamma Quadrant Class-M planet surrounded with a strange quantum energy barrier. In the 22nd Century, the planet was colonized by the crew of the USS Defiant who were sent back into an alternate timeline when the Defiant crashed on the planet and could not send a distress call.