The Blue Marble, a photograph of the planet Earth made on 7 December 1972 by the crew of the Apollo 17 spacecraft.
The world is the totality of entities, the whole of reality, or everything that exists. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of parts.
In scientific cosmology, the world or universe is commonly defined as "[t]he totality of all space and time; all that is, has been, and will be". Theories of modality talk of possible worlds as complete and consistent ways how things could have been. Phenomenology, starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In philosophy of mind, the world is contrasted with the mind as that which is represented by the mind. Theology conceptualizes the world in relation to God, for example, as God's creation, as identical to God or as the two being interdependent. In religions, there is a tendency to downgrade the material or sensory world in favor of a spiritual world to be sought through religious practice. A comprehensive representation of the world and our place in it, as is found in religions, is known as a worldview. Cosmogony is the field that studies the origin or creation of the world while eschatology refers to the science or doctrine of the last things or of the end of the world.
The World Series is the annual final championship series of Major League Baseball (MLB) in the United States and Canada. It has traditionally been held in October, though some more recent editions were contested in November due to expanded playoffs and/or season delays. It has been contested since 1903 between the champion teams of the American League (AL) and the National League (NL). The winner of the World Series championship is determined through a best-of-seven playoff, and the winning team is awarded the Commissioner's Trophy.
Prior to the AL and NL being split into divisions in 1969, the team with the best regular-season win–loss record in each league automatically clinched its league's pennant and advanced to the World Series, barring the rare tie necessitating a pennant playoff. Since then each league has conducted a League Championship Series (ALCS and NLCS) preceding the World Series to determine which teams will advance, while those series have been preceded in turn by Division Series (ALDS and NLDS) since 1995, and Wild Card games or series in each league since 2012. Until 2002, home-field advantage in the World Series alternated from year to year between the AL and NL. From 2003 to 2016, home-field advantage was given to the league that won that year's All-Star Game. Starting in 2017, home-field advantage was awarded to the league champion team with the better regular-season win–loss record, regardless of that team's seeding in earlier playoff rounds (i.e. a Wild Card team in one league will have home-field advantage over a division winner in the other league if the WC team had a better record or wins the tie-breaking procedure). (Full article...)
Critics of the concept argue that its vagueness undermines its effectiveness, that it has become little more than a vehicle for activists wishing to promote certain causes, and that it does not help the research community understand what security means or help decision-makers to formulate good policies. Alternatively, other scholars have argued that the concept of human security should be broadened to encompass military security: 'In other words, if this thing called 'human security' has the concept of 'the human' embedded at the heart of it, then let us address the question of the human condition directly. Thus understood, human security would no longer be the vague amorphous add-on to harder-edged areas of security such as military security or state security.' (Full article...)
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The "World Scientists' Warning to Humanity" was a document written in 1992 by Henry W. Kendall and signed by about 1,700 leading scientists. Twenty-five years later, in November 2017, 15,364 scientists signed "World Scientists' Warning to Humanity: A Second Notice" written by William J. Ripple and seven co-authors calling for, among other things, human population planning, and drastically diminishing per capita consumption of fossil fuels, meat, and other resources. The second notice has more scientist cosigners and formal supporters than any other journal article ever published. (Full article...)
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Yggdrasil, a modern attempt to reconstruct the Norse world tree which connects the heavens, the earth and the underworld The underworld, also known as the netherworld or hell, is the supernatural world of the dead in various religious traditions and myths, located below the world of the living. Chthonic is the technical adjective for things of the underworld.
The concept of an underworld is found in almost every civilization and "may be as old as humanity itself". Common features of underworld myths are accounts of living people making journeys to the underworld, often for some heroic purpose. Other myths reinforce traditions that the entrance of souls to the underworld requires a proper observation of ceremony, such as the ancient Greek story of the recently dead Patroclus haunting Achilles until his body could be properly buried for this purpose. People with high social status were dressed and equipped in order to better navigate the underworld. (Full article...)
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The astronomical symbol of Earth represents either the four quadrants of the world or the four continents.
Image 2Exaggerated illustration of Earth's elliptical orbit around the Sun, marking that the orbital extreme points (apoapsis and periapsis) are not the same as the four seasonal extreme points, the equinox and solstice (from Earth)
Image 5Change in average surface air temperature and drivers for that change. Human activity has caused increased temperatures, with natural forces adding some variability. (from Earth)
Image 11An artist's impression of ice age Earth at glacial maximum. (from History of Earth)
Image 12An artist's impression of the Archean, the eon after Earth's formation, featuring round stromatolites, which are early oxygen-producing forms of life from billions of years ago. After the Late Heavy Bombardment, Earth's crust had cooled, its water-rich barren surface is marked by continents and volcanoes, with the Moon still orbiting Earth half as far as it is today, appearing 2.8 times larger and producing strong tides. (from Earth)
Image 24Artist's impression of Earth during the later Archean, the largely cooled planetary crust and water-rich barren surface, marked by volcanoes and continents, features already roundmicrobialites. The Moon, still orbiting Earth much closer than today and still dominating Earth's sky, produced strong tides. (from History of Earth)
Image 25A schematic view of Earth's magnetosphere with solar wind flowing from left to right (from Earth)
Image 27A 2012 artistic impression of the early Solar System's protoplanetary disk from which Earth and other Solar System bodies were formed (from Earth)
Image 32Pillar erected by India's Maurya Emperor Ashoka
Image 33Trilobites first appeared during the Cambrian period and were among the most widespread and diverse groups of Paleozoic organisms. (from History of Earth)
Image 39A view of Earth with its global ocean and cloud cover, which dominate Earth's surface and hydrosphere; at Earth's polar regions, its hydrosphere forms larger areas of ice cover. (from Earth)
Image 40Japanese depiction of a Portuguese carrack. European maritime innovations led to proto-globalization.
Image 41An animation of the changing density of productive vegetation on land (low in brown; heavy in dark green) and phytoplankton at the ocean surface (low in purple; high in yellow) (from Earth)
Image 45Geologic map of North America, color-coded by age. From most recent to oldest, age is indicated by yellow, green, blue, and red. The reds and pinks indicate rock from the Archean.
Image 49The replicator in virtually all known life is deoxyribonucleic acid. DNA is far more complex than the original replicator and its replication systems are highly elaborate. (from History of Earth)
Image 51A reconstruction of human history based on fossil data. (from History of Earth)
Image 52Earth's western hemisphere showing topography relative to Earth's center instead of to mean sea level, as in common topographic maps (from Earth)
Image 60Conjectured illustration of the scorched Earth after the Sun has entered the red giant phase, about 5–7billion years from now (from Earth)
Image 61Artist's impression of a Hadean landscape with the relatively newly formed Moon still looming closely over Earth and both bodies sustaining strong volcanism. (from History of Earth)
Image 67Earth's night-side upper atmosphere appearing from the bottom as bands of afterglow illuminating the troposphere in orange with silhouettes of clouds, and the stratosphere in white and blue. Next the mesosphere (pink area) extends to the orange and faintly green line of the lowest airglow, at about one hundred kilometers at the edge of space and the lower edge of the thermosphere (invisible). Continuing with green and red bands of aurorae stretching over several hundred kilometers. (from Earth)
Image 68Artist's impression of the enormous collision that probably formed the Moon (from History of Earth)
Image 72Tiktaalik, a fish with limb-like fins and a predecessor of tetrapods. Reconstruction from fossils about 375million years old. (from History of Earth)
Image 73Artist's conception of Hadean Eon Earth, when it was much hotter and inhospitable to all forms of life. (from History of Earth)
Image 74Artist's rendition of an oxinated fully-frozen Snowball Earth with no remaining liquid surface water. (from History of Earth)
Image 84Pangaea was a supercontinent that existed from about 300 to 180Ma. The outlines of the modern continents and other landmasses are indicated on this map. (from History of Earth)
... that the ceramicist Sandy Brown wanted her sculpture Earth Goddess to be "female and making an impact"?
... that "Look at the world" is a 1996 choral harvest anthem with text and music by John Rutter, written for CPRE "on the theme of the environment and our responsibility towards it"?
... that the title page of Promptuarium Iconum Insigniorum shows an eagle atop a globe flanked by serpents, which symbolizes worldly triumph?
... that a construction worker working on the Great World MRT station died after an excavator's bucket dislodged and fell on him?
... that Joseph Binder influenced modern poster design, creating posters for the 1939 New York World's Fair, the U.S. Army Corps and the American Red Cross?
The objective of the list and competition was to promote the architectural heritage and legacy of the Portuguese across the world. A commission pre-selected 27 notable monuments of Portuguese origin from 16 countries across Asia, Africa, and the Americas. The results of the competition were announced at a ceremony at the Portugal Day celebrations in 2010. (Full article...)
About 17 percent of the mainland of Norway is protected. Of this, ca. 8.3 percent is national parks, 1.3 percent is nature reserves and 4.7 percent otherwise protected. (Full article...)
This is a list of protected areas of Yukon. The Yukon, formerly called Yukon Territory and sometimes referred to as just Yukon is the smallest and westernmost of Canada's three territories. It also is the least populated province or territory in Canada, with a population of 35,874 people as of the 2016 Census. (Full article...)
Queensland is the second largest state in Australia. As at 2020, it contained more than 1000 protected areas. In August 2023, it was estimated a total of 14.5 million hectares or 8.38% of Queensland's landmass was protected. (Full article...)
Papua New Guinea is home to several protected areas, which receive protection because of their environmental, cultural or similar value.
The total area of Papua New Guinea protected territories is 14,330km2 (5,530sqmi), which amounts to approximately 3.07% of the country's territory. The total number of protected areas as 2018 is 71. (Full article...)
Image 1Only a few of the largest large igneous provinces appear (coloured dark purple) on this geological map, which depicts crustal geologic provinces as seen in seismic refraction data
This article uses material from the Wikipedia article Portal:World, and is written by contributors.
Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.
International trade is the exchange of capital, goods, and services across international borders or territories because there is a need or want of goods or services. (see: World economy)
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Fall of the Berlin Wall, 1989
Change in average surface air temperature and drivers for that change. Human activity has caused increased temperatures, with natural forces adding some variability. (from Earth)
Satellite time lapse imagery of Earth's rotation showing axis tilt (from Earth)
Great Pyramids of Giza, Egypt
Chloroplasts in the cells of a moss (from History of Earth)
Angkor Wat temple complex, Cambodia, early 12th century
A view of Earth with different layers of its atmosphere visible: the troposphere with its clouds casting shadows, a band of stratospheric blue sky at the horizon, and a line of green airglow of the lower thermosphere around an altitude of 100 km, at the edge of space (from Earth)
An artist's impression of ice age Earth at glacial maximum. (from History of Earth)
An artist's impression of the Archean, the eon after Earth's formation, featuring round stromatolites, which are early oxygen-producing forms of life from billions of years ago. After the Late Heavy Bombardment, Earth's crust had cooled, its water-rich barren surface is marked by continents and volcanoes, with the Moon still orbiting Earth half as far as it is today, appearing 2.8 times larger and producing strong tides. (from Earth)
A pillar at Göbekli Tepe
Machu Picchu, Inca Empire, Peru
An artist's rendering of a protoplanetary disk (from History of Earth)
Lithified stromatolites on the shores of Lake Thetis, Western Australia. Archean stromatolites are the first direct fossil traces of life on Earth. (from History of Earth)
Artist's conception of Devonian flora (from History of Earth)
Graph showing range of estimated partial pressure of atmospheric oxygen through geologic time (from History of Earth)
A schematic view of Earth's magnetosphere with solar wind flowing from left to right (from Earth)
Notre-Dame de Paris, France
A 2012 artistic impression of the early Solar System's protoplanetary disk from which Earth and other Solar System bodies were formed (from Earth)
A banded iron formation from the 3.15 Ga Moodies Group, Barberton Greenstone Belt, South Africa. Red layers represent the times when oxygen was available; gray layers were formed in anoxic circumstances. (from History of Earth)
A composite image of Earth, with its different types of surface discernible: Earth's surface dominating Ocean (blue), Africa with lush (green) to dry (brown) land and Earth's polar ice in the form of Antarctic sea ice (grey) covering the Antarctic or Southern Ocean and the Antarctic ice sheet (white) covering Antarctica. (from Earth)
Trilobites first appeared during the Cambrian period and were among the most widespread and diverse groups of Paleozoic organisms. (from History of Earth)
The Pantheon, originally a Roman temple, now a Catholic church
A view of Earth with its global ocean and cloud cover, which dominate Earth's surface and hydrosphere; at Earth's polar regions, its hydrosphere forms larger areas of ice cover. (from Earth)
Japanese depiction of a Portuguese carrack. European maritime innovations led to proto-globalization.
An animation of the changing density of productive vegetation on land (low in brown; heavy in dark green) and phytoplankton at the ocean surface (low in purple; high in yellow) (from Earth)
Last Moon landing: Apollo 17 (1972)
Cross-section through a liposome (from History of Earth)
Geologic map of North America, color-coded by age. From most recent to oldest, age is indicated by yellow, green, blue, and red. The reds and pinks indicate rock from the Archean.
A computer-generated image mapping the prevalence of artificial satellites and space debris around Earth in geosynchronous and low Earth orbit (from Earth)
Earth's axial tilt causing different angles of seasonal illumination at different orbital positions around the Sun (from Earth)
The pale orange dot, an artist's impression of the early Earth which might have appeared orange through its hazy methane rich prebiotic second atmosphere. Earth's atmosphere at this stage was somewhat comparable to today's atmosphere of Titan. (from History of Earth)
The replicator in virtually all known life is deoxyribonucleic acid. DNA is far more complex than the original replicator and its replication systems are highly elaborate. (from History of Earth)
View of Earth from the Moon by the Lunar Reconnaissance Orbiter (from Earth)
A reconstruction of human history based on fossil data. (from History of Earth)
Earth's western hemisphere showing topography relative to Earth's center instead of to mean sea level, as in common topographic maps (from Earth)
Great Mosque of Kairouan, Tunisia, founded 670 CE
A map of heat flow from Earth's interior to the surface of Earth's crust, mostly along the oceanic ridges (from Earth)
Battle during 1281 Mongol invasion of Japan
Vitruvian Man by Leonardo da Vinci epitomizes the advances in art and science seen during the Renaissance. (from History of Earth)
First airplane, the Wright Flyer, flew on 17 December 1903.
Earth's history with time-spans of the eons to scale (from History of Earth)
Yggdrasil, an attempt to reconstruct the Norse world tree which connects the heavens, the world, and the underworld. (from World)
Artist's impression of a Hadean landscape with the relatively newly formed Moon still looming closely over Earth and both bodies sustaining strong volcanism. (from History of Earth)
Earth's land use for human agriculture in 2019 (from Earth)
Dinosaurs were the dominant terrestrial vertebrates throughout most of the Mesozoic (from History of Earth)
Taj Mahal, Mughal Empire, India
Earth's night-side upper atmosphere appearing from the bottom as bands of afterglow illuminating the troposphere in orange with silhouettes of clouds, and the stratosphere in white and blue. Next the mesosphere (pink area) extends to the orange and faintly green line of the lowest airglow, at about one hundred kilometers at the edge of space and the lower edge of the thermosphere (invisible). Continuing with green and red bands of aurorae stretching over several hundred kilometers. (from Earth)
Artist's impression of the enormous collision that probably formed the Moon (from History of Earth)
Empires of the world in 1898
Ming dynasty section, Great Wall of China
A Benin Bronze head from Nigeria
Tiktaalik, a fish with limb-like fins and a predecessor of tetrapods. Reconstruction from fossils about 375 million years old. (from History of Earth)
Artist's conception of Hadean Eon Earth, when it was much hotter and inhospitable to all forms of life. (from History of Earth)
Artist's rendition of an oxinated fully-frozen Snowball Earth with no remaining liquid surface water. (from History of Earth)
Florence, birthplace of the Italian Renaissance
Map of peopling of the world (Southern Dispersal paradigm), in thousands of years ago.
A composite image of artificial light emissions at night on a map of Earth (from Earth)
Image of the physical world, captured by the Hubble Space Telescope (from World)
A 580 million year old fossil of Spriggina floundensi, an animal from the Ediacaran period. Such life forms could have been ancestors to the many new forms that originated in the Cambrian Explosion. (from History of Earth)
Obelisk of Axum, Ethiopia
Tracy Caldwell Dyson, a NASA astronaut, observing Earth from the Cupola module at the International Space Station on 11 September 2010 (from Earth)
Pangaea was a supercontinent that existed from about 300 to 180 Ma. The outlines of the modern continents and other landmasses are indicated on this map. (from History of Earth)
Persepolis, Achaemenid Empire, 6th century BCE
Olmec colossal head, now at the Museo de Antropología de Xalapa
Chennakesava Temple, Belur, India
Ajloun Castle, Jordan
Standing Buddha from Gandhara, 2nd century CE
Shanghai. China urbanized rapidly in the 21st century.
A reconstruction of Pannotia (550 Ma). (from History of Earth)
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Only a few of the largest large igneous provinces appear (coloured dark purple) on this geological map, which depicts crustal geologic provinces as seen in seismic refraction data
Index map from the International Map of the World (1:1,000,000 scale)
1516 map of the world by Martin Waldseemüller
The world map by Gerardus Mercator (1569), the first map in the well-known Mercator projection
United Nations Human Development Index map by country (2016)
Time zones of the world
The Goode homolosine projection is a pseudocylindrical, equal-area, composite map projection used for world maps.
A plate tectonics map with volcano locations indicated with red circles
Mollweide projection of the world
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