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US dollar52.38EGPEuro58.69EGPBritish pound69.29EGPSaudi riyal13.97EGPUAE dirham14.26EGPKuwaiti dinar168.71EGPJordanian dinar73.88EGPQatari riyal14.39EGPTurkish lira1.06EGPChinese yuan7.81EGPGold 247,065.76EGP/gGold 216,182.54EGP/gGold 185,299.32EGP/gSilver102.64EGP/g

Science & Tech

تظهر وتختفي كل يوم.. سر السحابة «المستحيلة» على المريخ

By صدى البلد · 2 days ago · 1 min read صدى البلد ↗

تظهر وتختفي كل يوم.. سر السحابة «المستحيلة» على المريخ

ملخص الخبر

اقترب الباحثون من فك لغز سحابة جليدية هائلة تظهر وتختفي يوميا فوق بركان أرسيا مونس على سطح المريخ.
تتشكل السحابة نتيجة تحول بخار الماء إلى جزيئات جليدية مباشرة دون الحاجة لجسيمات دقيقة للتجمع حولها.
يوفر الارتفاع الشاهق للبركان والرياح القوية تبريدا سريعا لدرجات الحرارة مما يمهد لتكون السحابة في الغلاف الجوي الرقيق.
يساعد هذا الاكتشاف في فهم دورة المياه على المريخ وتوضيح الاختلافات الجوية بينه وبين كوكب الأرض.

ملخص كتبه الذكاء الاصطناعي من نص الخبر في مصدره.

في ظاهرة فضائية غامضة حيّرت العلماء لسنوات، اقترب الباحثون أخيرًا من فك لغز سحابة جليدية هائلة تظهر يوميًا فوق أحد أكبر البراكين على سطح المريخ
صدى البلد : المصدر
تظهر وتختفي كل يوم.. سر السحابة «المستحيلة» على المريخ

المصدر: صدى البلد

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