Look up planetary in Wiktionary, the free dictionary. Planetary means relating to a planet or planets. It can also refer to: Planetary habitability, the...

Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and maintain an environment hospitable to life. Life...

An epicyclic gear train (also known as a planetary gearset) is a gear reduction assembly consisting of two gears mounted so that the center of one gear...

A planetary system is a set of gravitationally bound non-stellar bodies in or out of orbit around a star or star system. Generally speaking, systems with...

Planetary romance (other synonyms are sword and planet, and planetary adventure[citation needed]) is a subgenre of science fiction or science fantasy...

Planetary symbols are used in astrology and traditionally in astronomy to represent a classical planet (which includes the Sun and the Moon) or one of...

Planetary Annihilation is a real-time strategy PC game originally developed by Uber Entertainment, whose staff included several video game industry veterans...

A planetary nebula is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives...

Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets)...

Planetary geology, alternatively known as astrogeology or exogeology, is a planetary science discipline concerned with the geology of celestial bodies...

Planetary is an American comic book series created by writer Warren Ellis and artist John Cassaday, and published by the Wildstorm imprint of DC Comics...

Planetary consciousness is the idea that human beings are members of a planetary society of Earth as much as they are members of their nations, provinces...

Planetary boundaries are a framework to describe limits to the impacts of human activities on the Earth system. Beyond these limits, the environment may...

Planetary Health is a multi- and transdisciplinary research paradigm, a new science for exceptional action, and a global movement. Planetary health refers...

A planetary civilization or global civilization is a civilization of Type I on the Kardashev scale. This type of civilization is likely to be reliant...

A planetary core consists of the innermost layers of a planet. Cores may be entirely liquid, or a mixture of solid and liquid layers as is the case in...

The Planetary Society is an American internationally-active non-governmental nonprofit organization. It is involved in research, public outreach, and...

A planetary mnemonic refers to a phrase created to remember the planets and dwarf planets of the Solar System, with the order of words corresponding to...

Understanding of the Origin of Planetary Systems". Strategy for the Detection and Study of Other Planetary Systems and Extrasolar Planetary Materials: 1990–2000...

In planetary science, planetary differentiation is the process by which the chemical elements of a planetary body accumulate in different areas of that...

Planetary Duality is the second studio album by American death metal band The Faceless. It was released on November 11, 2008 through Sumerian Records...

free-floating planet (FFP) or an isolated planetary-mass object (iPMO), is an interstellar object of planetary mass which is not gravitationally bound to...

orbited at a focal point of the ellipse, as described by Kepler's laws of planetary motion. For most situations, orbital motion is adequately approximated...

The Center for Planetary Research at the University of Copenhagen was created in February 2001 when the planetary science groups from the Niels Bohr Institute...

Planetary protection is a guiding principle in the design of an interplanetary mission, aiming to prevent biological contamination of both the target...

The planetary hours are an ancient system in which one of the seven classical planets is given rulership over each day and various parts of the day. Developed...

As of 19 December 2024, there are 5,811 confirmed exoplanets in 4,340 planetary systems, with 973 systems having more than one planet. In collaboration...

The following is an incomplete list of known planetary nebulae. Table entries are sourced from the individual articles, where available, for each nebula...

Planetary Resources, Inc., formerly known as Arkyd Astronautics, was an American company that was formed on 1 January 2009, and reorganized and renamed...

existed for at least 300 years. However, the weather is not limited to planetary bodies. A star's corona is constantly being lost to space, creating what...