The Sublunary Sphere is a concept derived from Greek astronomy. It is the region of the cosmos from the Earth to the Moon, consisting of the four classical elements: earth, water, air, and fire. Beginning with the Moon, up to the limits of the universe, everything is made of aether. The planets and stars are located in the region of aether, where everything is permanent, regular, and unchanging. Plato and Aristotle helped to formulate the theory of a sublunary sphere in Antiquity. Thomas Aquinas is among those who picked up on the ideas of an existing sublunary sphere, and charted them in his work Summa Theologica. This idea usually goes hand in hand with Geocentrism and the concept of a spherical Earth. This article belongs in one or more categories. ... Earth is the third planet in the Solar system. ... Bulk composition of the moons mantle and crust estimated, weight percent Oxygen 42. ... Several ancient Classical Element Greek version of these ideas persisted throughout the Middle Ages and into the Renaissance, deeply influencing European thought and culture. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Water is one of the four classical elements in ancient Greek philosophy and science. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Chinese Wood (木) | Fire (火) | Earth (土) | Metal (金) | Water (水) Hinduism The Panchamahabhuta (five great elements) Prithvi/Bhumi (Earth) Ap/Jala (Water) Agni/Tejas (Fire) Vayu/Pavan (Air/Wind) Akasha (Aether) Aether (also spelled ether), the Void, is a concept, historically, used in science (as a medium) and in philosophy (as a substance). ... In astronomy, the Naked eye planets are Mercury, Venus, Mars, Jupiter, and Saturn. ... For alternate meanings see star (disambiguation) Hundreds of stars are visible in this image taken by the Hubble Space Telescope of the Sagittarius Star Cloud in the Milky Way Galaxy. ... Plato ( Greek: Πλάτων, Plátōn) (c. ... Aristotle (Ancient Greek: Aristotelēs 384–March 7 322 BCE) was an ancient Greek philosopher, who studied with Plato and taught Alexander the Great. ... Saint Thomas Aquinas [Thomas of Aquin, or Aquino] (c. ... The geocentric model (in Greek: geo = earth and centron = centre) of the universe is a paradigm which places the Earth at its center. ... Belief in a flat Earth is found in humankinds oldest writings. ...