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Planetary geology, alternatively known as astrogeology or exogeology, is a planetary science discipline concerned with the geology of celestial bodies such as planets ...
The Earth's climate system is a prime example of an emergent property of the whole planetary system, that is, one which cannot be fully understood without regarding it as a single integrated entity. It is also a system where human impacts have been growing rapidly in recent decades, lending immense importance to the successful development and ...
It is a strongly interdisciplinary field, which originally grew from astronomy and Earth science, [1] and now incorporates many disciplines, including planetary geology, cosmochemistry, atmospheric science, physics, oceanography, hydrology, theoretical planetary science, glaciology, and exoplanetology. [1]
Earth's Gravity according to PREM. Green curves show hypothetical Earths with density constant (dashed) and decreasing linearly from center to surface (stippled)
History of geology – history of studying Earth, with the general exclusion of present-day life, flow within the ocean, and the atmosphere. History of planetary geology – the history of the planetary science discipline concerned with the geology of the celestial bodies, such as the planets and their moons, asteroids, comets, and meteorites.
Planetary geology studies geoscience as it pertains to extraterrestrial bodies. Geomorphology studies the origin of landscapes. Structural geology studies the deformation of rocks to produce mountains and lowlands. Resource geology studies how energy resources can be obtained from minerals.
Today, the mission of the USGS Astrogeology Science Center is to serve the nation, the international planetary science community, and the general public's pursuit of new knowledge of our Solar System by [citation needed]: Conducting innovative, fundamental research that advances the fields of planetary cartography, geoscience, and remote sensing.
In 1979, it was established as a National Facility, funded through the Planetary Geology and Geophysics Program. In 1995, increased scientific needs across various disciplines resulted in joint core funding by three different science programs at NASA Headquarters (Planetary Geology and Geophysics, Exobiology, and Solar System Origins).