Gaia is a fictional planet described in the book Foundation's Edge, by Isaac Asimov. The name is derived from Gaia theory, which is itself eponymous to Gaia, the Earth Goddess.

Gaia is located in the Sayshell Sector, about 10 parsecs (32 light years) from Sayshell. It orbits a G-4 class star, and has one natural satellite (50 km, 31 miles in diametre).

It was founded by R. Daneel Olivaw, in an effort to resolve some of the problems that plagued him due to the Zeroth Law. (Gaia also follows a similar law: 'Gaia may not harm life, or, by inaction, allow life to come to harm.') By 498 F.E., Gaia had a population of 1,000,000,000; this is a high population for a planet at that time. The inhabitants hoped eventually to create a complex ecology; all human-settled planets in the Galaxy--except Earth--had simple ecologies. The inhabitants of Gaia were all tied together into a telepathic group consciousness when it was founded; this consciousness was eventually extended to the inanimate planet life, and later to the inorganic material of the planet. This would explain The Mule's incredible psychic powers, as Gaia was said to be his home planet.

Gaians have long names, which are even longer depending on their status. They are generally addressed by only one syllable, or sometimes a few. Known Gaians: Blissenobiarella (Bliss), Endomandiovizamarondeyaso... (Dom, 253 syllables in full), Suranoviremblastiran (Su to herself, Vi to her mother).

The ultimate goal of Gaia was to convert the entire Galaxy into a similar superorganism, called Galaxia. Hari Seldon's Psychohistory Project was a 'backup' initiated by Olivaw in the event that Gaia-Galaxia failed.

In 498 F.E., Golan Trevize and Janov Pelorat, the protagonists of Foundation's Edge, are manoeuvered to Gaia so Trevize can decide whether the future of the Galaxy is to be guided by the physical (First Foundation), mental (Second Foundation), or organic (Gaia). Trevize chooses Gaia.

Gaia's Powers

Because of the size of the consciousness involved, Gaia's mental powers are significantly greater than those of any other mentalics encountered before in previous books. Where Second Foundationers generally required eye contact to alter emotions, Gaia could detect and alter minds anywhere in the Galaxy. This way, it could guarantee the perfect execution of the Seldon plan, even more perfect than what the Second Foundation could manage. It is apparent, though, that Gaia cannot use its powers far enough to influence other Galaxies; presumably, Galaxia will have this power.

Gaia is able to channel the kinetic energy of its matter, a phenomenon Asimov calls transduction. Transduction allowed Gaia to provide limited electrical power, move objects as large as starships, or take over the computer control system of a space vessel. It may also be capable of obliterating large sections of matter, though this ability is never discussed by Gaia; the Solarians (much more powerful transducers) were capable of destroying objects at least as large as space vessels.

Gaia's ability to store data revolutionises information. Gaia has no written records; every amount of information is stored in the collective consciousness. Naturally, a good deal of this is stored in humans and other large-brained animals, but some is stored in inanimate objects such as water, geological features, or trees. Historical records are based on the memories of individuals stored forever in the collective consciousness. Any part of Gaia can access these memories directly, as if they were just another part of their own mind. Because Galaxia will also include stars, Black Holes, uninhabited planets, and cosmic debris, the powers of data storage will be enhanced significantly.

Presumably, Gaia is also capable of acting as a giant computing device, with each mind working to solve a problem. Thus, Gaia may not need the use of computers. It may also be able to store the Prime Radiant in its collective consciousness.

Because of the nature of Gaia, natural disasters can be regulated. The collective consciousness can be alerted to an impending volcanic eruption because of the consciousness of the inanimate matter involved, and take the necessary precautions. Likewise, weather can also be carefully controlled.

Despite the enormous powers of Gaia, they are a relatively local phenomenon at the time of Foundation's Edge. This is because mentalic effects occur at the speed of light. To have them happen more quickly, Gaia must act through hyperspace, which takes a good deal more energy. However, in Galaxia these problems will be somewhat reduced, because all matter in the Galaxy will be part of Galaxia.

Statistics

• Star
  • Spectral Class: G-4
• Planet
  • Axial Inclination: 12º
  • Rotation: .92 Galactic Standard Days
  • Satellite: 1, 50 km (31 mile) diametre