Difference between revisions of "Template:Featured article"

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===<!--[[Image:red_ring.png|15px|left]]-->Featured article: [[Geologic Processes on the Moon/Cratering on the Moon|Cratering on the Moon]]===
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===<!--[[Image:red_ring.png|15px|left]]-->Featured article: [[JSC-1]]===
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[[Image:GP1Fig_3.jpg|160px|left]] Craters cover the surface of the moon and are the result of hyper-velocity impacts by meteorites. The velocity of meteorites upon impact varies, but is generally between 10 and 40 km/sec. This number is a combination of the ‘approach velocity’ and the ‘escape velocity.’ The approach velocity of objects refers to the velocity of the object with respect to the moon. This varies with the type of object (for example, long period comets generally have a higher approach velocity than short period comets) and the direction with which it approaches the moon (for example, if it approaching the moon ‘head on,’ it will have a higher approach velocity than...([[Geologic Processes on the Moon/Cratering on the Moon|read more]])
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[[Image:EIC050-2.GIF|160px|left]] JSC-1, a lunar soil simulant, was developed and characterized under the auspices of the NASA Johnson Space Center. This simulant was produced in large quantities to satisfy the requirements of a variety of scientific and engineering investigations. JSC-1 is derived from volcanic ash of basaltic composition, which has been ground, sized, and placed into storage. The simulant's chemical composition, mineralogy, particle size distribution, specific gravity, angle of internal friction, and cohesion have been characterized and fall within the ranges of lunar mare soil samples. ...([[JSC-1|read more]])
 
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<SMALL><STRONG>[[Featured articles|See all featured articles]]</STRONG> | [[Talk:Featured_articles|Nominate!]]</SMALL>
 
<SMALL><STRONG>[[Featured articles|See all featured articles]]</STRONG> | [[Talk:Featured_articles|Nominate!]]</SMALL>

Latest revision as of 16:03, 8 April 2019

Featured article: JSC-1

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JSC-1, a lunar soil simulant, was developed and characterized under the auspices of the NASA Johnson Space Center. This simulant was produced in large quantities to satisfy the requirements of a variety of scientific and engineering investigations. JSC-1 is derived from volcanic ash of basaltic composition, which has been ground, sized, and placed into storage. The simulant's chemical composition, mineralogy, particle size distribution, specific gravity, angle of internal friction, and cohesion have been characterized and fall within the ranges of lunar mare soil samples. ...(read more)

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