Changing Earth phases, seen from the moon

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  • Earth from the moon

    This view of the rising Earth greeted the Apollo 8 astronauts as they came from behind the Moon. (NASA)

    What does Earth look like from the surface of the moon? Could you see Earth change in phase?

    You know that one side of the moon always faces us. So you’d have to be on that side to see any Earth at all. But from any part of the moon’s near side, you could see Earth wax and wane – just as the moon does as seen from our world. Both the Earth and the moon are always half illuminated by the sun. But from either world, at any given time, you can see varying portions of that lighted half – or various phases of the Earth or moon.

    The phases are always the reverse of each other. When we see the moon as nearly full, any moon people would see a slim crescent Earth. When we see a completely full moon, the moon, Earth and sun are in a line – with Earth in the middle. Then people on the moon wouldn’t see Earth at all because it’d be hidden in the sun’s glare.

    Also consider the moon’s slow rotation. The moon appears to rise and set as seen from Earth not because of the moon’s motion – but because Earth spins once a day on its axis. Because one side of the moon always faces us, from most places on the moon, Earth doesn’t appear to rise or set. Instead, from a given point on the moon’s near side, you’d always see Earth hanging in your sky. Meanwhile, the sun would rise and set once each month – each time the moon spun once on its axis, thereby keeping that single face turned toward Earth. So from any spot on the moon, day and night would sweep over you once a month.

    1 Comments for Changing Earth phases, seen from the moon

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      www.vide-wide.moonfruit.com On the pictures in the photo gallery one can notice that there is a hand present made into a fist and the thumb is on the side. When looking at the image from a distance, it becomes visible that there is a figure which appears to be a full-length human body. In perspective, there is no actual head present but one can imagine that the head belonging to the body might be a planet such as the moon. The location of the “head” is located in the northern part of the globe, as for the feet they are located on Antarctica. Looking to the far right it is evident that there is another figure which appears to be a human body as well but much smaller then the first one. The second figure seems to be in some way covered, as though they have been in an accident. The following picture and text might spite many opinions , as I also started having an opinion about the image. At first many questions arose followed by confusion and finally I have come to a conclusion that the image is indeed a mark of history in the world.

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