10 Terms
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Planetary science
The scientific study of planets including Earth, moons, and planetary systems of the Solar System in particular and the processes that form them.
Industry: Astronomy
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Planetary science
anorthosite
Astronomy; Planetary science
An igneous rock made up almost entirely of plagioclase feldspar. This rock dominates the lunar highlands.
gigapascal (GPa)
Astronomy; Planetary science
Conventional unit of pressure when discussing the deep Earth: 1 GPa = 10 kilobars = 10,000 times air pressure at sea level.
space weathering
Astronomy; Planetary science
Processes that change the physical structure, optical properties, or chemical or mineralogical properties of the surface of an airless planetary body from their original state. These processes ...
stellar nucleosynthesis
Astronomy; Planetary science
The naturally occurring nuclear reactions in stars that make the elements heavier than hydrogen and helium. See also supernova.
sheet silicates
Astronomy; Planetary science
These minerals have layered structures that contain silicon and oxygen in some multiple of Si 2 O 5 .
erosion
Astronomy; Planetary science
Removal of weathered rocks by moving water, wind, ice, or gravity.
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