Gravitation | A Moment of Science - Indiana Public Media

Here's an odd thing about weightlessness: if it were possible to live in the center of the earth we would be weightless there, too!

Have you ever been mesmerized? If so, you know that the term "mesmerize" means to be captivated in a trance-like state. But do you know its history?

Where did the nine planets that orbit our sun come from?

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