Why is there only an up and down on Earth and not out in space? 

There’s no gravity in space. On a planet like ours, down is always toward the center of gravity.  Up is always the opposite of the center of gravity. Drop a ball, it goes down. Up is the opposite.

In space if you let go of a ball it stays where you let go of it (as long as you weren’t moving your hand, that is.)

Your personal sense of up and down is caused by your inner ear. In space, however, sometimes people feel sick because it feels like they’re falling all the time (and in fact, when in orbit you are falling all the time).

Author: Wayne Boyd

Wayne Edward Boyd was born in Morristown, New Jersey in 1953. He is a published author, former ISKCON sannyasi, and traveler, having lived on 3 continents and visited 37 countries. He presently lives in Amarillo, Texas working as a correctional officer and has interests in photography, political science and astronomy.

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