<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG /> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoNormal"><span style="mso-bidi-font-weight:bold">Kızıl gezegenden Afrika’nın Sahra Çölü’ne düşen bir meteorda yapılan incelemeler sonucu ilginç sonuçlar elde edildi. Meteorun Mars’taki evrimin sırlarını çözmesi bekleniyor. </span></p> <p class="MsoNormal"><span style="mso-bidi-font-weight:bold">Amerikan Havacılık ve Uzay Dairesi NASA, 2011 yılında Mars gezegeninden Afrika'daki Sahra Çölü'ne düşen meteorun incelendiğini ve ilginç sonuçlar elde edildiğini açıkladı.</span></p> <p class="MsoNormal"><span style="mso-bidi-font-weight:bold">NASA'nın internet sitesinde yayınlanan açıklamada, "siyahın güzelliği" olarak da adlandırılan "NWA 7034" adlı meteorun 320 gram ağırlığında ve 2,1 milyar yaşında olduğu bildirildi. NASA, meteorun böylece “Amazon” olarak adlandırılan Mars'taki son jeolojik dönemin başlangıcından kaldığını bildirdi.</span></p> <p class="MsoNormal"><span style="mso-bidi-font-weight:bold">NWA 7034'ün bugüne kadar bulunan diğer Mars kökenli meteorlardan 10 kat daha fazla su içerdiğini belirten uzmanlar, ayrıca içindeki oksijen izotopu oranının kızıl gezegendeki atmosferle etkileşimi nedeniyle çok daha farklı olduğunu ifade etti.</span></p> <p class="MsoNormal"><span style="mso-bidi-font-weight:bold">"Siyahın güzelliği"nin NASA'nın Mars'taki gezgin robotlarının ve uydularının keşifleri için "mükemmel bir örnek" olduğunu vurgulayan uzmanlar, NWA 7034'ün soğumuş lavların biçimlendirdiği yapışık bazalt çözeltilerden oluştuğunu, bunun ana nedenlerinden birinin kızıl gezegendeki volkanik patlamalar olduğunu vurguladı.</span></p> <p class="MsoNormal"><b>‘HAYAT VAR MI' SORUSUNA YANIT ARANIYOR</b></p> <p class="MsoNormal"><span style="mso-bidi-font-weight:bold">Uzmanlar, bu meteordan elde ettikleri verilerin gelecekte Mars'la ilgili araştırmalarda çok işe yarayacağını, kızıl gezegeninin jeolojik yapısındaki sürecin ve 2 milyar yıl önceki volkanik yüzeyinin gizeminin bu sayede çözülebileceğini düşündüklerini sözlerine ekledi.<br /> <br /> </span><span style="mso-bidi-font-weight:bold"><img width="590" height="332" border="0" alt="" src="http://www.dw.de/image/0,,16270725_401,00.jpg" /></span></p> <p class="MsoNormal"><b>MARS, ŞU ANDA KURU VE SOĞUK BİR GEZEGEN</b></p> <p class="MsoNormal"><span style="mso-bidi-font-weight:bold">Mars'ın başlangıçta bol miktarda suya sahip olduğu kabul ediliyor. 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