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The expression "load cast", sometimes also called a load structure, refers to a load (the denser layer) sinking into its underlying (less dense) cast (mold). Related to load casts are flame structures, load waves, and anticrests. Extreme developments of load casts are pseudo-nodules and ball-and-pillow structures. In these extreme cases, the ...
The differences between Earth's soil and lunar soil mean that plants struggle to grow in it. [ 32 ] [ 33 ] As a result long-term space missions could require complicated and expensive efforts to provide food, such as importing Earth soil , chemically treating lunar regolith to remove heavy metals and oxidize iron atoms, and selectively breeding ...
JSC-1 (Johnson Space Center Number One) was a lunar regolith simulant that was developed in 1994 by NASA and the Johnson Space Center. Its developers intended it to approximate the lunar soil of the maria. It was sourced from a basaltic ash with a high glass content. [1]
Lunarcrete, also known as "mooncrete", an idea first proposed by Larry A. Beyer of the University of Pittsburgh in 1985, is a hypothetical construction aggregate, similar to concrete, formed from lunar regolith, that would reduce the construction costs of building on the Moon. [3]
The term lunar soil is often used interchangeably with "lunar regolith" but typically refers to the finer fraction of regolith, that which is composed of grains one centimetre in diameter or less. Some have argued that the term "soil" is not correct in reference to the Moon because soil is defined as having organic content, whereas the Moon has ...
Conditions in space could shed light on how to improve plant productivity on Earth. Out of this world gardening: Researchers at PNNL to dig into soil returning from space Skip to main content
Groove casts are closely spaced, but not on top of each other, and exist in pairs, triples, and even larger groups. Groove casts form when high velocity flows (e.g. turbidite) create a pattern on an underlying bed. In 1957, Kuenen published that "groove cast" was a general term encompassing both drag marks and slide marks. [4] [6] [8]
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