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WHY IS MARS RED?
September 2025
|BBC Science Focus
One of the most recognisable features of Mars is its red colour. Even the naked eye can clearly discern the Red Planet's ruddy hue. Humans have wondered where this red colour comes from for centuries, perhaps millennia.
Previously, it was thought to be due to the presence of hematite (from the Greek word for 'blood'), a dry, iron-oxide mineral also commonly found on Earth. Continuous oxidation and weathering of Martian rocks, under water-poor surface conditions during the so-called 'Amazonian' period (starting 3 billion years ago) could also explain Mars's red colour.
Like hematite, the red colour of rust is also derived from the presence of various oxides and hydroxides of iron.
هذه القصة من طبعة September 2025 من BBC Science Focus.
اشترك في Magzter GOLD للوصول إلى آلاف القصص المتميزة المنسقة، وأكثر من 9000 مجلة وصحيفة.
هل أنت مشترك بالفعل؟ تسجيل الدخول
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