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🌎 In 1938, miners unearthed grooved stone spheres buried deep in South Africa. Some are nearly perfectly round, with parallel grooves, and date back over 2.8 billion years. These “Klerksdorp spheres” were found in pyrophyllite deposits and their natural or human origin is still debated. ✨ #archaeology⚡#mystery⚡#spheres 👉subscribe Interesting Planet 👉more Channels ​

🌍 The highest forests on Earth grow above 4,900 meters in the Andes, where trees survive thin air, cold temperatures, and strong sunlight—an extreme zone where biosphere meets atmosphere and lithosphere. ✨ #spheres⚡#Andes⚡#ecosystems⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍 ​