Planetary means relating to a
planet
A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a you ...
or planets. It can also refer to:
;Science
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Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and maintain environments hospitable to life. Life may be generated directly on a planet or satellite endogenously or be transferred to it from ...
, the measure of an astronomical body's potential to develop and sustain life
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Planetary nebula
A planetary nebula (PN, plural PNe) is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives.
The term "planetary nebula" is a misnomer because they are unrelated to ...
, an astronomical object
;People
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Planetary (rapper)
Mario Collazo (born August 8, 1978), better known by his stage name Planetary, is an American underground rapper from Philadelphia, Pennsylvania. He is one half of the rap duo OuterSpace and a member of Army of the Pharaohs.
Biography Early ca ...
, one half of east coast rap group OuterSpace
;Arts, entertainment, and media
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''Planetary'' (comics), a comic book series by Warren Ellis and John Cassaday
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Planetary (Go!)
"Planetary (Go!)" is a single from My Chemical Romance's fourth studio album, '' Danger Days: The True Lives of the Fabulous Killjoys'' as well as the fifth track on the album. Beneath the band's name and song title on the cover art of the single, ...
", a 2011 song by rock band My Chemical Romance
* ''Planetary Radio'', a public radio show about space exploration, produced by The Planetary Society
;Organizations
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The Planetary Society
The Planetary Society is an American internationally-active non-governmental nonprofit organization. It is involved in research, public outreach, and political space advocacy
Space advocacy is supporting or advocating for a human use of out ...
, the Earth's largest space interest group
;Technology
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Epicyclic gearing
An epicyclic gear train (also known as a planetary gearset) consists of two gears mounted so that the center of one gear revolves around the center of the other. A carrier connects the centers of the two gears and rotates the planet and sun gea ...
(planetary gearing), an automotive transmission technology
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Planetary scanner
A planetary scanner (also called an orbital scanner) is a type of image scanner for making scans of rare books and other easily damaged documents. In essence, such a scanner is a mounted camera taking photos of a well-lit environment. Originally, ...
- type of image scanner for making scans of rare books with mounted camera taking photos
{{disambiguation