Антарктида: Тафовут байни таҳрирҳо

[[Акс:ALH84001.jpg|thumb|right|220px|AntarcticМетеорити meteoriteАнтарктикӣ, namedномгузорӣ шудааст [[ALH84001]], fromаз [[MarsМарс]].]]

[[MeteoriteМетеорит]]sҳои from AntarcticaАнтарктида areдар anзонаи importantомӯзиши areaҷирмҳои ofматериалии studyосмонии of material formed early in the [[solarСистемаи systemофтобӣ]]; mostхеле areмуҳим thoughtба toҳисоб comeмераванд; бисёри онҳо fromаз [[asteroidастероид]]s,ҳо butканда someшуда mayба have[[Замин]] афтидаанд, originatedаммо onякчандашон largerаз [[planetсайёра]]s.ҳои Theдигар firstастанд. meteoritesЯкумин foundметеоритҳо inдар AntarcticaАнтарктида wereдар inсоли [[1912]]. InДар соли [[1969]] theҷопониҳо Japaneseнуҳ discovered nine[[метеорит]] meteoritesдар inАнтарктида Antarcticaёфтаанд. Most of these meteorites have fallen onto the [[ice sheet]] in the last million years. Motion of the ice sheet tends to concentrate the meteorites at blocking locations such as mountain ranges, with wind erosion bringing them to the surface after centuries beneath accumulated snowfall. Compared with meteorites collected in more temperate regions on Earth, the Antarctic meteorites are relatively well preserved.<ref name="meteorite">NASA [http://www-curator.jsc.nasa.gov/antmet/index.cfm Meteorites from Antarctica] Retrieved [[February 9]] [[2006]].</ref>

ThisИн largeколлексия collectionи ofкалони meteoritesметеоритҳо allows a better understanding of the abundance of meteorite types in the solar system and how meteorites relate to asteroids and comets. New types of meteorites and rare meteorites have been found. Among these meteorites are pieces blasted off the moon, and probably Mars, by impacts. These specimens, particularly [[ALH84001]] discovered by [[ANSMET]], are at the center of the controversy about possible evidence of microbial life on Mars. Because meteorites in space absorb and record cosmic radiation, the time elapsed since the meteorite hit the Earth can be determined from laboratory studies. The elapsed time since fall, or terrestrial residence age, of a meteorite represents more information that might be useful in environmental studies of Antarctic ice sheets.<ref name="meteorite" />