Earth's core is a billion years old. #Astronomy #science https://t.co/dQzfgoiwj3
— Yusra Salim | يُسرى بِنْت سالم (@Shulab) August 31, 2020
from Twitter https://twitter.com/Shulab
Earth's core is a billion years old. #Astronomy #science https://t.co/dQzfgoiwj3
— Yusra Salim | يُسرى بِنْت سالم (@Shulab) August 31, 2020
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