Today, we all know that this "earth center theory" is wrong.

我们今天都知道“地心说”是错误的。

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According to the basic theory of GPS navigation and SINS navigation, the comprehensive mathematic models of integrate navigation system is built under Earth Center Fixed coordinate system.

根据GPS导航和SINS导航的基本关系，在地心地固坐标系下建立了完整的深层全组合导航系统的数学模型。

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Why did the ancient Greeks believe that the Earth was the center of the universe?

为什么古希腊人坚信地球是宇宙的中心呢？

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Scientists at the Goddard Space Flight Center in Greenbelt,Maryland, found the substance glycine in material brought back to Earth from a comet.

VOA: special.2009.09.30

" Exploring Synergies between Faith Values and Education for Sustainable Development" by the UNESCO Chair on Education for Sustainable Development (2012) The Earth Charter Center for Education for Sustainable Development and the University of Peace (Costa Rica).

UNESCO: UNITWIN

New Orleans lies between the lake's water and the Earth's center where gravity wants that water to go.

NPR: Defying Gravity, and Odds, in New Orleans

The Italian physicist concluded in the 1600s that the sun did not, in fact, travel around the earth, but that the earth orbited the sun, bucking Catholic logic that the earth was the center of the universe.

FORBES: Why Your Principles Might Be Holding You Back