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Studying Noctilucent CloudsIn Kenneth Chang s article , First Mission to query Those Wisps in the Night Sky , New York Times , April 24 , 2007 , one of NASA s latest commissionings is described . NASA is sending a major(ip) orbiter , AIM , into orbit 370 miles above Earth . patch it is in orbit it will study noctilucent clouds by photographing them , step temperature , air shove moisture levels and the size of the frosting crystals in them . NASA hope to learn where the dust seeding these clouds is coming fromNoctilucent clouds cast at the very top of Earth s standard pressure and brace been detect since 1885 . These thin , wispy clouds are solely visible at night and are illuminated by the setting solarize . Although they form in polar regions , they have been seen at 40 degrees latitude . Scientists first thought t hese clouds were payable to vol arseic alter , but the clouds were observed after the ash had settled . Since 1980 , their spot has increased about 28 portion per decade .

The primary(prenominal) investigator of the NASA mission believes global melting or the skeletal frame up of CO2 may be the reason there are more of these cloudsThis is the reason tooshie this pose mission . Scientist hope to learn what is forming these clouds . Are they forming from particles in our atmosphere or from dust form outer space ? Are these clouds a sign that global warming is bear upon the atmosphere of our planet in ways in which we were incogni zant ? Global warming increases the temperat! ure of the surface of the planet while cool down the upper atmosphere causing more of these clouds to formThis article can be open up at http /www .nytimes .com /2007 /04 /24 /science /24cloud .html ?ref science...If you want to get a ripe essay, order it on our website: BestEssayCheap.com

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