Atmosphere of the Moon

Atmosphere of the - Atmosphere of the Moon From Wikipedia the free encyclopedia For most practical purposes the Moon is considered to be surrounded

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Atmosphere of the Moon From Wikipedia, the free encyclopedia For most practical purposes, the Moon is considered to be surrounded by vacuum . The elevated presence of atomic and molecular particles in its vicinity (compared to interplanetary medium ), referred to as ' lunar atmosphere' for scientific objectives, is negligible in comparison with the gaseous envelope surrounding Earth and most planets of the Solar system - less than one hundred trillionth of Earth's atmospheric density at sea level. One source of the lunar atmosphere is outgassing : the release of gases such as radon and helium that originate from radioactive decay within the crust and mantle . Another important source is the bombardment of the lunar surface by micrometeorites , the solar wind , and sunlight , in a process known as sputtering . [1] Gases that are released by sputtering can either: be re-implanted into the regolith as a result of the Moon's gravity ; be lost to space either by solar radiation pressure
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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