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Lunar soil typically refers to only the finer fraction of lunar regolith, which is composed of grains 1 cm in diameter or less, but is often used interchangeably. [1] Lunar dust generally connotes even finer materials than lunar soil.
The Lunar Atmosphere and Dust Environment Explorer (LADEE; / ˈ l æ d i /) [5] was a NASA lunar exploration and technology demonstration mission. It was launched on a Minotaur V rocket from the Mid-Atlantic Regional Spaceport on September 7, 2013. [6]
However, standard usage among lunar scientists is to ignore that distinction. [citation needed] "Lunar dust" generally connotes even finer materials than lunar soil, the fraction which is less than 30 micrometers in diameter. The average chemical composition of regolith might be estimated from the relative concentration of elements in lunar soil.
Dust counts made by LADEE's Lunar Dust EXperiment (LDEX) found particle counts peaked during the Geminid, Quadrantid, Northern Taurid, and Omicron Centaurid meteor showers, when the Earth, and Moon pass through comet debris. The lunar dust cloud is asymmetric, being denser near the boundary between the Moon's dayside and nightside. [101] [102]
NASA Researchers view a demonstration of the moon dust simulator in the 8- by 6-Foot Supersonic Wind Tunnel facility at the NASA Lewis Research Center (1960).. In the run-up to the Apollo program, crushed terrestrial rocks were first used to simulate the anticipated soils that astronauts would encounter on the lunar surface. [2]
Gene Cernan on the Moon in the Apollo 17 lander with lunar dust stuck on his suit. Lunar dust is highly abrasive and can cause damage to human lungs, nervous, and cardiovascular systems. [1] Lunar habitation is any human habitation on the Moon. [2] Lunar habitation is provided by surface habitats, possibly as part of a moonbase. [3]
Lunar horizon glow is a phenomenon in which dust particles in the Moon's thin atmosphere create a glow during lunar sunset. The Surveyor program provided the first data and photos of the phenomenon. Astronauts in lunar orbit observed it during the Apollo 15 and Apollo 17 missions. Lunar horizon glow as observed by Surveyor 7 mission.
Gutheinz patterned this college project after NASA's earlier Operation Lunar Eclipse, which he had participated in. Beginning in 2002, his graduate students began reporting to him that both the Cyprus Apollo 11 Moon rock (which is actually a collection of lunar dust in a Lucite ball) and Cyprus Apollo 17 Goodwill Moon Rock (a pebble-size Moon ...