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#Sun #calendar ** ☀️ The Heart of Our Solar System: Today is International Sun Day** від 13philia
Sun #calendar ** ☀️ The Heart of Our Solar System: Today is International Sun Day** Imagine a burning sphere so vast that more than a million Earths could fit inside it. Actually, you don’t have to imagine it — just look up. The Sun contains about 99.8% of all the mass in the Solar System. Everyt...