Planet

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Physical Universe (Mass, Force)
Galaxy, Star, Solar System, Planet, Moon, Asteroid, Comet
Mercury, Venus, Earth (Moon), Mars (3D), Jupiter, Saturn, Uranus, Neptune, Pluto

Resources

These are organized by a classification scheme developed exclusively for Cosma. More…

General

Dictionary

planet : any of the large bodies that revolve around a star — Webster

Oxford, OneLook, Free Dictionary, Wiktionary, InfoPlease, Word Reference, Urban Dictionary

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

Encyclopedia

Planet is an astronomical body orbiting a star or stellar remnant that

is massive enough to be rounded by its own gravity,
is not massive enough to cause thermonuclear fusion, and
has cleared its neighbouring region of planetesimals.

The term planet is ancient, with ties to history, astrology, science, mythology, and religion. Several planets in the Solar System can be seen with the naked eye. These were regarded by many early cultures as divine, or as emissaries of deities. As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate objects. In 2006, the International Astronomical Union (IAU) officially adopted a resolution defining planets within the Solar System. This definition is controversial because it excludes many objects of planetary mass based on where or what they orbit. Although eight of the planetary bodies discovered before 1950 remain “planets” under the modern definition, some celestial bodies, such as Ceres, Pallas, Juno and Vesta (each an object in the solar asteroid belt), and Pluto (the first trans-Neptunian object discovered), that were once considered planets by the scientific community, are no longer viewed as such. — Wikipedia

David Darling’s Internet Encyclopedia of Science, Britannica, Columbia (Infoplease)

Directory

DMOZ Open Directory Project (AOL)

Search

WolframAlpha, DuckDuckGo

Science


Planetary Science (NASA/JPL)

Preservation

History

400 years, 7,500 words: A history of planetary science (Lauren Gold, Cornell Chronicle)

Quotation

Quotations Page Bartlett’s

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

Participation

Education

Course

Physics and Chemistry of the Terrestrial Planets (MIT)
OER Commons: Open Educational Resources, Open Education Consortium

Community

Organization

The Planetary Society

Event

Conference Alerts Worldwide (Conal)

Forum

Reddit

Blog

WordPress

News

Planetary Science (Science News), NPR Archives

Book

ISBNdb

Government

NASA Planetary Science

Document

USA.gov

Expression

Fun


Poem

OEDILF: The Omnificent English Dictionary In Limerick Form

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