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Earth's interior, like that of the other terrestrial planets, is divided into layers by their chemical or physical (rheological) properties. The outer layer is a chemically distinct silicate solid crust, which is underlain by a highly viscous solid mantle. The crust is separated from the mantle by the Mohorovičić discontinuity. [130]
Earth was first used as the name of the sphere of the Earth in the early fifteenth century. [4] The planet's name in Latin, used academically and scientifically in the West during the Renaissance , is the same as that of Terra Mater , the Roman goddess, which translates to English as Mother Earth .
The runes a:miþkarþi, Old Norse á Miðgarði, meaning "in Midgard" – "in Middle Earth", on the Fyrby Runestone (Sö 56) in Södermanland, Sweden.. In Germanic cosmology, Midgard (an anglicised form of Old Norse Miðgarðr; Old English Middangeard, Old Saxon Middilgard, Old High German Mittilagart, and Gothic Midjun-gards; "middle yard", "middle enclosure") is the name for Earth ...
The first eon in Earth's history, the Hadean, begins with the Earth's formation and is followed by the Archean eon at 3.8 Ga. [2]: 145 The oldest rocks found on Earth date to about 4.0 Ga, and the oldest detrital zircon crystals in rocks to about 4.4 Ga, [34] [35] [36] soon after the formation of the Earth's crust and the Earth
Knowledge of the location of Earth has been shaped by 400 years of telescopic observations, and has expanded radically since the start of the 20th century. Initially, Earth was believed to be the center of the Universe , which consisted only of those planets visible with the naked eye and an outlying sphere of fixed stars . [ 1 ]
1.2 Latin and other. 1.3 Places. 2 Nature. 3 People. Toggle People subsection. ... An alternate name for planet Earth, as well as the Latin name for the planet; Terra ...
In ancient Roman religion and mythology, Tellus, Terra or Tierra [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.
For instance, for a large portion of names ending in -s, the oblique stem and therefore the English adjective changes the -s to a -d, -t, or -r, as in Mars–Martian, Pallas–Palladian and Ceres–Cererian; [note 1] occasionally an -n has been lost historically from the nominative form, and reappears in the oblique and therefore in the English ...