, from Avatar movie.



is a moon of the gas giant Polyphemus (both are figures in Greek mythology), which orbits Alpha Centauri A, 4.37 light years from Earth.

Discovered by the first interstellar expedition in 2129, has been the single most interesting thing to happen to the human race in hundreds of years. The news services love to run clips of the wild scenery on , and its bizarre flora and fauna.

To the cultures of Earth, which has lost all contact with the natural world, is mysterious, primal and terrifying. Even from orbit the scope of florae present on the surface indicates a planet brimming with life. One of the creatures on is the Direhorse, a grey-skinned, hexapodal horse-like animal with bioluminescent qualities that the Na'vi use to hunt with. The Na'vi also use the Mountain Banshee to hunt from the air, but a hunter can become prey in the presence of the Great Leonopteryx. In the canopy below, other deadly yet exotic animals roam. Vicious packs of Viperwolves, thick skinned Hammerhead Titanotheres, and the Thanator, the most fearsome of all. Other than the color, the trees resemble those of Earth. They have the familiar trunks and branches and leaves, though, due to the difference in planetary gravity, many of the shapes are strange and the proportions are greater due to the lower gravity. The trees and all plant life of have formed electrochemical connections between the roots and effectively act as neurons, creating a planet-wide "brain" that has achieved sentience.

, despite being almost as large as Earth, is only a moon of the gas giant Polyphemus, which has thirteen other moons. However, due to its smaller size, its gravity is 20% less than Earth's. Due to 's lower gravity, most creatures on are hexapods, six-legged. Creatures roam the air and forest canopy below, similar to Earth's animals, but on a scale several times larger. 's wildlife also have bioluminescent qualities. Depending on the position of the various moons, can have two or even three moons in its sky at once. and the other moons cast large black shadows on Polyphemus.

appears like a lush paradise by Earth standards during the day, though at night virtually all life on the planet exhibits bioluminescent qualities in various shades of blue, purple and green, explaining the Na'vi's blue skin color, which is most likely a better camouflage at night on .