Planetary
11planetary — adj. 1 of or like planets (planetary influence). 2 terrestrial; mundane. 3 wandering; erratic. Phrases and idioms: planetary nebula a ring shaped nebula formed by an expanding shell of gas round a star. Etymology: LL planetarius (as PLANET) …
12planetary — /plan i ter ee/, adj. 1. of, pertaining to, or resembling a planet or the planets. 2. wandering; erratic. 3. terrestrial; global. 4. Mach. noting or pertaining to an epicyclic gear train in which a sun gear is linked to one or more planet gears… …
13planetary — adj. Planetary is used with these nouns: ↑mission, ↑orbit …
14planetary — planet ► NOUN 1) a celestial body moving in an elliptical orbit round a star. 2) (the planet) the earth. 3) chiefly Astrology & historical a celestial body distinguished from the fixed stars by having an apparent motion of its own (including the… …
15Planetary science — Planetary science, also known as planetology and closely related to planetary astronomy, is the science of planets, or planetary systems, and the solar system. Incorporating an interdisciplinary approach, planetary science draws from diverse… …
16Planetary habitability — is the measure of a planet s or a natural satellite s potential to develop and sustain life. As the existence of life beyond Earth is currently uncertain, planetary habitability is largely an extrapolation of conditions on Earth and the… …
17Planetary romance — is a type of science fantasy story in which the bulk of the action consists of adventures on one or more exotic alien planets, characterized by distinctive physical and cultural backgrounds. Some planetary romances take place against the… …
18Planetary defense — Planetary defense, is the concept of protecting Earth (or another planet) from extraterrestrial threats such as near Earth objects or alien invasions.Mitigation of near Earth objectsNear Earth objects (NEOs) are asteroids, comets and large… …
19Planetary cartography — includes all cartographic materials produced for objects with solid surfaces external to the Earth. This can include any spatially mapped characteristic (e.g., topography, geology, and geophysical properties) for extraterrestrial surfaces. Also… …
20Planetary Radio — is a weekly 30 minute radio show devoted to space exploration and astronomy, hosted and produced by Mat Kaplan and The Planetary Society. Every week, it comprises mostly of interviews and telephone based conversations with a scientist, engineer,… …
