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Terra may often refer to: Terra (mythology), primeval Roman goddess; An alternate name for planet Earth, as well as the Latin name for the planet;
There are a number of adjectives for the planet Earth. The word "earthly" is derived from "Earth". From the Latin Terra comes terran / ˈ t ɛr ə n /, [30] terrestrial / t ə ˈ r ɛ s t r i ə l /, [31] and (via French) terrene / t ə ˈ r iː n /, [32] and from the Latin Tellus comes tellurian / t ɛ ˈ l ʊər i ə n / [33] and telluric. [34]
A terrestrial planet, tellurian planet, telluric planet, or rocky planet, is a planet that is composed primarily of silicate, rocks or metals. Within the Solar System , the terrestrial planets accepted by the IAU are the inner planets closest to the Sun : Mercury , Venus , Earth and Mars .
In ancient Roman religion and mythology, Tellus Mater or Terra Mater [a] ("Mother Earth") is the personification of the Earth.Although Tellus and Terra are hardly distinguishable during the Imperial era, [1] Tellus was the name of the original earth goddess in the religious practices of the Republic or earlier.
An artist's conception shows a terraformed Mars in four stages of development.. Terraforming or terraformation ("Earth-shaping") is the hypothetical process of deliberately modifying the atmosphere, temperature, surface topography or ecology of a planet, moon, or other body to be similar to the environment of Earth to make it habitable for humans to live on.
Theia (/ ˈ θ iː ə /) is a hypothesized ancient planet in the early Solar System which, according to the giant-impact hypothesis, collided with the early Earth around 4.5 billion years ago, with some of the resulting ejected debris coalescing to form the Moon.
Planet nine may be orbiting far from the Sun, at the edge of our solar system. Astronomers, seeing odd irregularities in the orbits of the outer planets suspect another, unknown, planet may orbit ...
The Hollow Earth is an obsolete concept proposing that the planet Earth is entirely hollow or contains a substantial interior space. Notably suggested by Edmond Halley in the late 17th century, the notion was disproven, first tentatively by Pierre Bouguer in 1740, then definitively by Charles Hutton in his Schiehallion experiment around 1774.