Vatican Considers Hosting Flat Earth Theory Synod in 2019
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Planet Astronomical symbol of EarthThe particular Blue Marble, the first full-view photograph of the planet, was captured by astronauts en route to the Moon in 1972
Earth is the 3rd planet from the sunlight and the only astronomical item known to harbor life. According to radiometric dating and some other sources of evidence, Planet formed over 4. 5 billion years ago. Earth's gravity interacts with other objects in space, especially the Sun and the Celestial body overhead, Earth's only natural satellite tv. Earth revolves around the Sun in 365. 26 times, a period known as an Earth year. During this time, Earth moves about its axis about 366. 26 times.
Earth's axis of rotation is tilted with respect to its orbital plane, producing seasons in the world. The gravitational interaction between Earth and the Moon causes ocean tides, stabilizes Earth's alignment on its axis, and slowly slows its turn. Earth is the densest planet in the Photo voltaic System and the biggest of the four terrestrial planets.
Earth's lithosphere is divided into several rigid tectonic plates that move across the surface over periods of many millions of years. About 71% of Earth's surface is covered with water, generally by oceans. The 29% is land consisting of regions and islands that with each other have many lakes, waterways and other sources of water that contribute to the hydrosphere. The majority of Earth's polar regions are covered in ice, like the Antarctic ice sheet and the sea ice of the Arctic ice pack. Globe's interior remains active with a solid iron internal core, a liquid external core that generates the Earth's magnetic field, and a convecting mantle that drives plate tectonics.
Inside the first billion years of Earth's history, life appeared in the oceans and began to affect the Earth's atmosphere and surface, leading to the proliferation of aerobic and anaerobic organisms. Some geological evidence indicates that life may have arisen as much as 4. 1 billion years ago. Since then, the combination of Globe's distance from the Sun, physical properties, and geological history have allowed life to evolve and thrive. In the good the Earth, biodiversity has long gone through long periods of expansion, occasionally punctuated by mass extinction events. More than 99% of all species that ever lived on Earth are extinct. Estimates of the number of species in the world today vary broadly; most species have not been described. Over seven. 6 billion humans live on Earth and count on its biosphere and natural resources for their success.[40] Humans have developed diverse societies and civilizations; politically, the world has about 200 sovereign declares.
The current English word Planet developed from a broad variety of Middle English forms, which derived from a classic English noun most often spelled eorðe. It has cognates in every Germanic language, and their proto-Germanic root has been reconstructed as *erþō. In its earliest appearances, eorðe was already being used to convert the many senses of Latin terra and Ancient greek γῆ (gē): the ground, their soil, dry land, a persons world, the surface of the world (including the sea), and the globe itself. As with Terra and Gaia, Earth was a personified goddess in Germanic paganism: the Angles were listed by Tacitus as among the devotees of Nerthus, and later Norse mythology included Jörð, a giantess often given as the mother of Thor.
Originally, world was written in lowercase, and from early Center English, its definite sense as "the globe" was expressed as the world. By Early Modern British, many nouns were made a fortune, and the earth became (and often remained) the Earth, particularly when referenced together with other heavenly body. More recently, the name is sometimes simply given as Earth, by analogy with the names of the other planets. House styles now vary: Oxford spelling identifies the lowercase form as the most common, with the capitalized form an acceptable alternative. Another convention capitalizes "Earth" when appearing as a name (e. g. "Earth's atmosphere") but writes it in lowercase when preceded by the (e. gary the gadget guy. "the atmosphere of the earth"). It almost always appears in lowercase in colloquial expressions such as "what on the planet are you doing? ".
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