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Science & Tech

أصل الحياة على كوكبنا.. نظرية عمرها قرن تواجه التشكيك

By روسيا اليوم · 2 hours ago · 1 min read روسيا اليوم ↗

أصل الحياة على كوكبنا.. نظرية عمرها قرن تواجه التشكيك

ما يعرفه ريفو عن الخبر

تشير دراسة حديثة إلى أن احتمال نقل المذنبات للمواد الأساسية للحياة إلى الأرض قد يكون ضئيلا للغاية.
قد تؤدي السرعات العالية والحرارة الناتجة عن اصطدام المذنبات إلى تبخر الجزيئات الغنية بالكربون والنيتروجين قبل وصولها لسطح الأرض.
يرى العلماء أن الكويكبات قد تكون مصدرا أكثر احتمالا لهذه المواد مقارنة بالمذنبات.
قد تكون المذنبات قد ساهمت في نقل المواد الأولية للحياة إلى كوكب المريخ بسبب صغر حجمه ورقة غلافه الجوي.

لطالما أثار نشوء الحياة على الأرض تساؤلات العلماء، ولا سيما ما يتعلق بمصدر المواد الأولية التي أسهمت في ظهورها.

المصدر: روسيا اليوم

#الأرض

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