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The first time humans saw the whole Earth with their own eyes
This image is historic. It’s the first time humans saw the entire Earth with their own eyes. The Apollo 8 astronauts took this picture on as they ventured into deep space on December 1968. Till today only 24 humans had the chance to see the Earth from this distance. There is no better place than…
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Gravitational Field illustrated – Gallery
This drawings illustrates a gravitational field similar to the one generated by the Earth .Is a model used to explain the influence…
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Galactic celestial sphere
This is how we see the entire sky from the earth, projected to a sphere. This concept has been used for thousands…
