موقع وجه أفريقيا موقع وجه أفريقيا هو موقع مهتم بمتابعة التطورات في القارة الأفريقية
Muhamad Yehia..Cairo For years, spacecraft have been studying Mars, revealing ancient signs of lakes and rivers that suggest the planet once had liquid water. New research is now shedding light on why Mars is covered in red dust. According to a recent study published in Nature Communications, the red colour …
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