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4 days ago · Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building') [1] is the scientific theory that Earth 's lithosphere comprises a number of large tectonic plates, which have been slowly moving since 3–4 billion years ago.
4 days ago · The scientific objective of geodesy is to determine the size and shape of the Earth. The practical role of geodesy is to provide a network of accurately surveyed points on the Earth’s surface, the vertical elevations and geographic positions of which are precisely known and, in turn, may be incorporated in maps.
5 days ago · The proposal refines current definitions that require planets to be round bodies which orbit our sun and have ‘cleared’ their neighbourhoods. Planetary scientists are proposing a new definition for what we can call a planet. If accepted, it would replace the current definition from 2006 that caused an uproar by demoting Pluto to a dwarf planet.
4 days ago · Wind tunnel experiments and numerical modelling reveal the existence of two distinct ripples on Earth: centimetre-scale impact ripples and decimetre-scale hydrodynamic ripples, akin to those in...
3 days ago · Journal of Earth System Science is an interdisciplinary journal focused on the study and evolution of Earth as a system. Covers the geosphere, atmosphere, ... Skip to main content
6 days ago · A mobile down-warping of the Earth's crust, either elongate or basin-like, measured in scores of kilometres, which is subsiding as sedimentary and volcanic rocks accumulate to thicknesses of thousands of metres.
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2 days ago · Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with about 210 known planetary satellites; many asteroids, some with their own satellites; comets and other icy bodies; and vast reaches of highly tenuous gas and dust known as the interplanetary medium.
