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A flux transfer event ( FTE) occurs when a magnetic portal opens in the Earth 's magnetosphere through which high-energy particles flow from the Sun. This connection, while previously thought to be permanent, has been found to be brief and very dynamic. The European Space Agency 's four Cluster spacecraft and NASA 's five THEMIS probes have ...
The World Portal. The world. 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.
A Stargate is a fictional Einstein–Rosen bridge portal device within the Stargate fictional universe that allows practical, rapid travel between two distant locations. [1] The devices first appeared in the 1994 Roland Emmerich film Stargate, and thereafter in the television series Stargate SG-1, Stargate Atlantis, and Stargate Universe.
Portals also assist in helping editors to find related projects and things they can do to improve Wikipedia, and provide a unique way to navigate Wikipedia topics. At present, there are 538 portals. You can also use the Special:Search box below to locate Portals and sub-pages. General reference Culture and the arts Geography and places Health ...
Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere, hydrosphere / cryosphere, atmosphere, and geosphere (or lithosphere ).
The Geology Portal. Geology (from Ancient Greek γῆ (gê) 'earth', and λoγία ( -logía) 'study of, discourse') is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time.
Portal. : Geography. Geography (from Ancient Greek γεωγραφία geōgraphía; combining gê 'Earth' and gráphō 'write') is the study of the lands, features, inhabitants, and phenomena of Earth. Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities —not merely where ...
The Hollow Earth is a 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.