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What’s in the Box? | Science project | Education.com

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Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

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Published: December 2, 2022

Historical Date: November 23, 2020

An enduring myth about the Moon is that it doesn't rotate. While it's true that the Moon keeps the same face to us, this only happens because the Moon rotates at the same rate as its orbital motion, a special case of tidal locking called synchronous rotation. The animation shows both the orbit and the rotation of the Moon. The yellow circle with the arrow and radial line have been added to make the rotation more apparent. The arrow indicates the direction of rotation. The radial line points to the center of the visible disk of the Moon at 0°N 0°E.
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The Moon's Orbit and Rotation - Moon: NASA Science

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Animation of both the orbit and the rotation of the Moon.

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Imagine you're in a spaceship, traveling away from Earth. As you sail onward, you see our planet and its Moon locked together in their endless, circling, gravitational embrace. Your distant view gives you a unique perspective on the Moon that can be hard to visualize from the ground, where the Moon appears to sweep through the sky as an ever-changing globe of light.

From your astronaut's viewpoint, you can see that the Moon is an average of 238,855 miles (384,399 km) from Earth, or about the space that could be occupied by 30 Earths. It travels around our planet once every 27.322 days in an elliptical orbit, an elongated circle. The Moon is tidally locked with Earth, which means that it spins on its axis exactly once each time it orbits our planet. Because of this, people on Earth only ever see one side of the Moon. We call this motion synchronous rotation.

Daily Moon Guide

Check out NASA's interactive map for observing the Moon each day of the year.
Go to the guide

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Overview From Space Imagine you're in a spaceship, traveling away from Earth. As you sail onward, you see our planet and its Moon locked together in their endless, circling, gravitational embrace. Your distant view gives you a unique perspective on the Moon that can be hard to visualize from the ground, where the Moon appears [...]