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) Dyson sphere, a hypothetical megastructure that encompasses a star and captures a large percentage of its solar power output 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
Arts, entertainment, and media Architecture Sunsphere The Sphere, a bronze sculpture at Liberty Park, New York City
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
Music Groups Sphere (American band), American jazz ensemble Sphere (group), a Japanese pop idol unit Sphere (Polish band), a death metal band from Poland
Albums and songs Sphere (album), a 1997 album by the American jazz group Sphere Sphere, 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 Sphere, a parameter in prescribing corrective lenses 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 Paradise, Nevada 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
See also Sfera (disambiguation) Sphering (disambiguation)