الرئيسية » كل الأخبار » دراسة: احتمال وجود بعض أشكال الحياة على سطح قمر كوكب زحل
قمر تيتان

دراسة: احتمال وجود بعض أشكال الحياة على سطح قمر كوكب زحل

يعتقد الباحثان في جامعة كورنيل جيمس ستيفنسون وبوليتك لينسي أن أشكالا ما من الحياة يمكن أن تتوفر على قمر تيتان البارد لكوكب زحل.
وهذا بغض النظر عن رأي يفيد باستحالة الحياة في بيئة خالية من الماء.
وطرح الباحثان، المتخصصان في الديناميك الكيميائي للجزئيات، نظرية تشير إلى احتمال بقاء خلايا حية منسجمة مع غاز الميثان على قمر تيتان .
وقام العالمان بإعداد نموذج كمبيوتري يحاكي خلية متألفة من اتحادات نيتروجين صغيرة الحجم يمكن أن تعيش في الميثان في ظروف درجة الحرارة المنخفضة جدا. وتضم الخلية إلى جانب النيتروجين جزئيات ثاني أكسيد الكربون والهيدروجين، أي تلك العناصر الكيميائية التي تتوفر في تيتان.
وأطلق الباحثان على تلك الخلية إسم ” azotosom “.

كائنات حية علي قمر زحل

كائنات حية علي كوكب زحل

وقال ستيفينسون إن الدراسة تهدف إلى التأكيد على احتمال نشوء خلايا تصمد أمام البرد المطلق في بحار الميثان الواقعة على سطح لبقمر تيتان، أو في الغلاف الغازي الذي يغطيه.

أما الباحثة بوليت كلينسي فتحدثت إلى الصحفيين حول عُدة علمية مكنّت العالمين من التكهن في احتمال بقاء خلايا على القمر تيتان وإمكانية تعايشها مع الميثان.

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