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সঠিক উত্তর হচ্ছে: কপার নিকাস
ব্যাখ্যা: In 200 B.C.E, Greek astronomer Aristarchus invented a model of the solar system in which the sun was in the middle and the planets rotated around it. This layout was geocentric, or earth-centered. Copernicuspublished his theory called \"The Revolutions of Heavenly Bodies\" in 1543 A.D.
ব্যাখ্যা: In 200 B.C.E, Greek astronomer Aristarchus invented a model of the solar system in which the sun was in the middle and the planets rotated around it. This layout was geocentric, or earth-centered. Copernicuspublished his theory called \"The Revolutions of Heavenly Bodies\" in 1543 A.D.