terrestrial planet (inner planet) The term used to classify the four inner, rocky Earth-like planets (Mercury, Venus, Earth, and Mars) of the solar system, which, relative to the jovian (or outer) planets are smaller, have high densities, are composed of metallic (mainly iron) and silicate phases, and have low contents of gaseous elements.
More From encyclopedia.com
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… 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… Earthy , Skip to main content earthy earth·y / ˈər[unvoicedth]ē/ • adj. (earth·i·er , earth·i·est ) resembling or suggestive of earth or soil: an earthy smell… 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… Planetary Science , CONCEPT The term planetary science encompasses a whole range of studies involving a combination of earth sciences and astronomy. Sometimes known as p… Historical Geology , CONCEPT Geologists are concerned primarily with two subjects: Earth's physical features and the study of the planet's history. These two principal br…
About this article
All Sources -
Updated Aug 24 2016 About encyclopedia.com content Print Topic
You Might Also Like