If moonlight (moonshine) is sunlight reflected off the moon to Earth, what is "Earthshine," and where would you have to go to see it?
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singwell-is off researching a lot
ANSWERS: 5
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Obviously you would need to go to the moon, or somewhere in space. Maybe you could upload a signal from the Hubble Telescope, I'm sure it has to deal with both Moonlight and Earthshine.
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Maybe Venus or Mars cause we can see them in the night sky.
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Astronomer Carl Sagan wrote of the "pale blue dot" -- the earth lighted by the sun and photographed in 1990 by the Voyager I spacecraft, looking back as it headed out the solar system. During a "full earth" on the moon at night, the earth would undoubtedly cast shadows (just like moonlight does on earth). The earth looks bigger from the moon than the moon does from earth.
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The moon, I guess.
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Basically any point where the angle formed by you, the visible edge of the Earth closest to the sun, and the closest visible edge of the sun is ~ less than 90 degrees, according to my calculations.
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