لماذا تختلف ألوان دماء الحيوانات بين الأحمر والأزرق والأخضر والبنفسجي؟
تختلف ألوان دماء الحيوانات بين الأحمر والأزرق والبنفسجي والأخضر والأبيض تقريبا، تبعا للبروتينات والصبغات التي تستخدمها في نقل الأكسجين، وهو تنوع يكشف أسرار تكيفها وتطورها.
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Europe space chief heads to Gulf as bloc looks beyond US
By Florence LoevePARIS, Nov 2 (Reuters) - The head of the European Space Agency will meet officials in the United Arab Emiratesthis week as Europe seeks new partners and aims to reduce its reliance on the United States for space exploration.The rise of Elon Musk's SpaceX has laid bare Europe's reliance on American space technology.
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UAE announces 'Planting Week 2026'; Abu Dhabi, Dubai aim to plant over 78 million trees
Initiative encourages individuals, families and institutions across the UAE to plant and nurture trees, building on the legacy of the late Sheikh Zayed bin Sultan Al Nahyan
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Nad Zabeel: Dubai unveils mega project to 'shape the future' | The National
Plans for research and development hub announced in presence of Sheikh Mohammed bin Rashid on Sunday