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Earth science. The rocky side of a mountain creek in Costa Rica. Earth science or geoscience includes all fields of natural science related to the planet Earth. [1] 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 ...
The angle of the Earth's axial tilt with respect to the orbital plane (the obliquity of the ecliptic) varies between 22.1° and 24.5°, over a cycle of about 41,000 years. The current tilt is 23.44°, roughly halfway between its extreme values.
Earth system science (ESS) is the application of systems science to the Earth. [1][2][3][4] In particular, it considers interactions and 'feedbacks', through material and energy fluxes, between the Earth's sub-systems' cycles, processes and "spheres"— atmosphere, hydrosphere, cryosphere, [5] geosphere, pedosphere, lithosphere, biosphere, [6 ...
Space research is scientific study carried out in outer space, and by studying outer space. From the use of space technology to the observable universe, space research is a wide research field. Earth science, materials science, biology, medicine, and physics all apply to the space research environment. The term includes scientific payloads at ...
Space physics, also known as space plasma physics, is the study of naturally occurring plasmas within Earth's upper atmosphere and the rest of the Solar System. It includes the topics of aeronomy , aurorae , planetary ionospheres and magnetospheres , radiation belts , and space weather (collectively known as solar-terrestrial physics [ 1 ] ).
10 million – 100 million years 4.5–4.6 bya: Terrestrial planets and the Moon form. Giant impacts occur. Water delivered to Earth. [2] Main sequence 50 million years 4.5 bya: Sun becomes a main-sequence star. [32] 200 million years 4.4 bya: Oldest known rocks on the Earth formed. [140] [142] 500 million – 600 million years 4.0–4.1 bya
The main comparison that can be made is to features on the Earth, as it is much more accessible and allows a much greater range of measurements to be made. Earth analog studies are particularly common in planetary geology, geomorphology, and also in atmospheric science. The use of terrestrial analogs was first described by Gilbert (1886). [8]
The Earth is but One Family 8 2014 Spain: Santander: Sea and Mountains 9 2015 Brazil: Poços de Caldas: Soil 10 2016 Japan: Mie: Our Future: Earth & Space 11 2017 France: Côte d'Azur: Standing on the Earth, Gazing at the Planets 12 2018 Thailand: Kanchanaburi: Earth Science for All 13 2019 South Korea: Daegu: Passion for Earth Science ...
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