Seeing Earth from the Moon


Have you ever wondered what Earth would look like if you were to stand on the moon? Astronauts have wondered this same question. They explored this question by taking pictures of Earth from the moon. Earth is quite large in comparison to the Moon. As a result, it is possible to view Earth from the moon�s perspective. Earth looks like a small, blue sphere from the moon; therefore, to see Earth at all, one must be on the near side of the moon. NASA�s images have shown fascinating things about Earth. Did you know that Earth has lunar phases that you can witness from the moon? These phases are similar to the ones that we see of the moon from Earth. One side of the moon always faces Earth because they are tidally locked with one another. As a result, it takes the same length for the moon to rotate around its own axis as it does to revolve around Earth. It is possible to see over half of the moon�s surface over time from Earth or more than half of the Earth�s surface from the outer edge of the moon because of the moon�s libration. In July 1969, during the Apollo 11 mission and when Neil Armstrong walked on the moon, a picture of Earth going through a crescent phase was taken and served as proof of this phenomenon. Moreover, from any part of the moon�s near side the Earth�s waxing and waning phases can be seen the same way we can see the moon�s phases from Earth. All of the Earth�s quarters and waxing and waning gibbous could be seen from the moon. Also, The sun is always illuminating half of the Earth or moon; therefore, the various phases of the Earth or moon can be seen from either world. In addition, in consideration of the moon�s slow rotation, from most locations of the moon, Earth doesn�t seem to rise or set due to the fact that one side of the moon always faces us. As an alternative, from any point of the moon�s near side, it will always be visible that Earth is hanging in your sky.



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