mean density
81Haumea (dwarf planet) — Infobox Planet bgcolour = #FFFFC0 name = Haumea caption = Artist s conception of Haumea, with its moons, Hiokinaiaka and Namaka discovery = yes discoverer= Brown et al. ; Ortiz et al. (neither official) discovered=2004 December 28 (Brown et al.… …
82Ceres (dwarf planet) — For other uses of the name Ceres , see Ceres. Ceres   Ceres as seen by Hubble Space Telescope (ACS). The …
83mercury — /merr kyeuh ree/, n., pl. mercuries. 1. Chem. a heavy, silver white, highly toxic metallic element, the only one that is liquid at room temperature; quicksilver: used in barometers, thermometers, pesticides, pharmaceutical preparations,… …
84moon — mooner, n. moonless, adj. /moohn/, n. 1. the earth s natural satellite, orbiting the earth at a mean distance of 238,857 miles (384,393 km) and having a diameter of 2160 miles (3476 km). 2. this body during a particular lunar month, or during a… …
85Titan — /tuyt n/, n. 1. Class. Myth. a. any of the sons of Uranus and Gaea, including Coeus, Crius, Cronus, Hyperion, Iapetus, and Oceanus. b. Also, Titaness. any of the sisters of these, including Mnemosyne, Phoebe, Rhea, Tethys, Themis, and Thia. c.… …
86Europa (moon) — Europa Europa s trailing hemisphere in approximate natural color. The prominent crater in the lower right is Pwyll and the darker regions are areas where Europa s primarily water ice surface has a higher mineral content. Imaged on September 7,… …
87Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
88Mars — This article is about the planet. For other uses, see Mars (disambiguation) …
89Neptune — This article is about the planet. For other uses, see Neptune (disambiguation). Neptune   …
90Moon — /moohn/, n. Sun Myung /sun myung/, born 1920, Korean religious leader: founder of the Unification Church. * * * Sole natural satellite of Earth, which it orbits from west to east at a mean distance of about 238,900 mi (384,400 km). It is less… …
