"When we view the stars at night, it seems as if we are at the center of a huge sphere and the stars are points of light distributed across it. That is 'The Celestial Sphere'. In ancient times people believed such a sphere actually existed and was rotating around us. We know better now, stars are actually very far away and the Earth is the object that rotates. Still, the celestial sphere remains a convenient tool for describing the positions of the stars in the sky."
A story describe by Zulkarnain
Cyrus The Great
Today's NASA, as example, while explaining the nature's phenomenon sometimes used an unsceintific facts but practical for a better global understanding.
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