Sphere (disambiguation)

A sphere is a three-dimensional object shaped like a ball; it may also refer to a sphere-like region or shell.

Sphere may also refer to:

Astronomy

 * Armillary sphere, a physical model of the celestial sphere
 * Celestial sphere, the astronomical description of the sky
 * Celestial spheres or planetary spheres, refer to a geocentric model of the universe and the associated postulate of a "Musica Universalis" (Music of the Spheres)
 * Hill sphere, the spherical region around an astronomical body where the primary gravitational influence on an orbiting object is that body
 * Spectro-Polarimetric High-Contrast Exoplanet Research (SPHERE) is an adaptive optics system and coronagraphic facility at the Very Large Telescope (VLT)
 * Sphere of influence (astrodynamics), similar to the Hill sphere, but smaller, only about 60% of the radius
 * Sphere of influence (black hole), a region around a supermassive black hole
 * SPHERES (Synchronized Position Hold, Engage, Reorient Experimental Satellites), a formation flight testbed developed by MIT's Space Systems Laboratory
 * SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer), a proposed space telescope

Human sciences

 * Separate spheres, an ideological term referring to separation between a private sphere and a public sphere in some societies
 * Sphere of influence, a metaphorical region of influence surrounding a country, person or concept

Mathematics

 * n-sphere, the set of points at fixed distance from a central point in n+1 dimensional space
 * Spherical surface, the boundary of a sphere (also known simply as sphere in mathematics)
 * Spherical volume, the region inside a sphere (also known as a ball in mathematics)
 * Unit sphere, the set of points at a distance of 1 from a central point

Films

 * Sphere (1998 film), a film based on Crichton's 1987 novel, starring Dustin Hoffman, Sharon Stone, and Samuel L. Jackson
 * Sphere (2013 film), an animated short film

Literature

 * Sphere (novel), a 1987 science-fiction novel by Michael Crichton
 * Spheres trilogy, three books by the philosopher Peter Sloterdijk
 * De sphaera mundi (The Sphere), a medieval astronomy book by Johannes de Sacrobosco
 * The Sphere (newspaper), a British weekly newspaper which ran between 1900 and 1964

Groups

 * Sphere (American band), American jazz ensemble
 * Sphere (Japanese band), a Japanese pop idol unit
 * Sphere (Polish band), a death metal band from Poland

Albums and songs

 * Sphere (album), a 2005 album by noise music artist Merzbow
 * "Sphere", a song by John Frusciante and Josh Klinghoffer from their album A Sphere in the Heart of Silence (2004)
 * Spheres (Delerium album)
 * "Spheres" (instrumental), a 2007 single by Mike Oldfield
 * Spheres (Pestilence album), 1993
 * Spheres, an album by Daniel Hope
 * Spheres 2, a 1994 album by Delerium

Other uses

 * Astigmatism disambiguation, in optometry, a parameter in eyeglass prescriptions that gives the optical power of the lens
 * Silver Sphere (born 1999), American singer-songwriter
 * Sphere, an extraterrestrial artificial intelligence that allies with humans from Independence Day: Resurgence
 * Spheres (TV series), a Korean animation
 * Sphere (organization), a project launched in 1997 to develop a set of minimum standards in core areas of humanitarian assistance
 * Sphere (website), a blog search engine
 * Sphere, a rumored internal development name for the PlayStation Move controller
 * Sphere 1, one of the earliest personal computers
 * Sphere Books, a British paperback-publisher from the 1960s to the 1980s and the 2000s to today
 * Sphere (venue), a sphere-shaped entertainment venue in Las Vegas
 * The Sphere, a 1971 large metallic sculpture in New York City
 * The Sphere (social network), an online network for renting luxury properties
 * The Spheres, a fictional planetary system in Coldplay's album Music of the Spheres