Thus, the "outflow" dust particles are another important factor to understand the chemical composition of material of the lunar surface.
Dust observation in lunar orbit is of great significance to better understand the source of supply of lunar materials, the evolution of lunar regolith, ejecta escaped from the Moon's gravitational sphere, and the inflow dust related to meteor streams.
The mineral compositions of lunar materials derived from remote-sensing observations of the reflectance spectrum become ambiguous due to the space-weathering effect.
Tells how they will pick up samples of lunar material - this is the main object of the trip.
Dr. Elbert King, a geologist, who is curator of the Lunar Receiving Laboratory, will take custody of all samples of lunar material that the astronauts b bring back.
During the U.S. Apollo missions a total weight of 381.7 kg (841.5 pounds) of lunar material was collected; an additional 300 grams (0.66 pounds) was brought back by unmanned Soviet Luna vehicles.
Mezrich chronicles the life of Thad Roberts who orchestrated the theft of 101.5 ounces of lunar material from a NASA vault at the Johnson Space Center JSCC).
In 2006, NASA gave Kraft the Ambassador of Exploration Award, which carried with it a sample of lunar material brought back by Apollo 11.
Armstrong spent about two and a half hours outside the spacecraft, Aldrin slightly less, and together they collected 47.5 pound of lunar material for return to Earth.
Since the bombardment rate of dust particles of the Moon has not been measured precisely, any changes in the reflectance of lunar surface materials have not been evaluated quantitatively.
