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Hollow Earth , Edmund Halley (1656–1742) is best known for having calculated the orbit of a comet that passes by Earth every 76 years. The comet known as Halley's m… Terrestrial Planet , Skip to main content
terrestrial planet
terrestrial planet, the earth or a planet that resembles the earth in its physical characteristics. The terre… Gaia Hypothesis , The Gaia (pronounced guy-ah) hypothesis is the idea that Earth is a living organism and can regulate its own environment. This idea argues that Earth… Earth , Imagine that you are describing planet Earth to someone who has never seen it. How would you describe its appearance? What would you say about it? Wh… apogee , apogee •haji • algae • Angie •argy-bargy, Panaji •edgy, sedgy, solfeggi, veggie, wedgie •cagey, stagy •mangy, rangy •Fiji, gee-gee, squeegee •Murrumb… perigee , perigee (astron.) point in the orbit of a planet that is nearest to the earth. XVI. In early use varying with forms directly repr. L. and Gr.; — F. p…
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geosynchronous