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Lunar regolith sample collected by China's Chang'e 5 mission displayed at Airshow China 2021. On 16 December 2020, China's Chang'e 5 mission returned to Earth with about 2 kilograms of rock and dirt it picked up from the Moon. It is the first lunar regolith sample to return to Earth since 1976.
The regolith contains rocks, fragments of minerals from the original bedrock, and glassy particles formed during the impacts. In most of the lunar regolith, half of the particles are made of mineral fragments fused by the glassy particles; these objects are called agglutinates. The chemical composition of the regolith varies according to its ...
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 ...
The lunar soil is composed of a blend of silica and iron-containing compounds that may be fused into a glass-like solid using microwave radiation. [92] [93] The European Space Agency working in 2013 with an independent architectural firm, tested a 3D-printed structure that could be constructed of lunar regolith for use as a Moon base.
The finer regolith, the lunar soil of silicon dioxide glass, ... [119] [120] At 13 km (8.1 mi) deep, its floor is the lowest point on the surface of the Moon.
The Lunar Prospector probe, launched in 1998, employed a neutron spectrometer to measure the amount of hydrogen in the lunar regolith near the polar regions. [32] It was able to determine hydrogen abundance and location to within 50 parts per million and detected enhanced hydrogen concentrations at the lunar north and south poles.
Protesters opposing possible Immigration and Customs Enforcement (ICE) raids in public schools demonstrate on the steps of the State Department of Education during their monthly board meeting in ...
The Lunar Instrumentation for Subsurface Thermal Exploration with Rapidity (LISTER) is designed to measure heat flow from the interior of the Moon. The probe will attempt to drill 2.13 to 3.05 meters (7 to 10 ft) into the lunar regolith to investigate the Moon's thermal properties at different depths.