A 3D printed solar system memento [Source: Spacetime Coordinates]
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![A 3D printed solar system memento [Source: Spacetime Coordinates]](https://static1.squarespace.com/static/509c281de4b0cd18c7335aab/t/5bc60983e2c483f9f26c53f6/1539705224017/?format=1000w)
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