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I have been several days in that vision in mind: Two planets are so close together that, if a resident of any of these planets look up, all you see is ... the sky of another planet, with all things face-down.

The floor of each planet is the sky of the Red Planet.

People do not see stars with their microscopes, but trees, mountains, buildings. The only constellations that you can see the lights of the cities of the neighboring planet. Artificial and changing constellations. The astrologer to look into those lights looking for his destiny, that destiny will in the hands of the urban plans of the cities too.

Look upwards and see forests and seas rotating on its axis, slowly.

And on each planet, a dark side as the face of the Moon, one hundred generating tabloid speculation and mystery mir.

I know is scientifically impossible. Newton and Kepler do not. The vagaries of the tides would be grotesque. And both planets would plug each other in the light of the sun, so it would always be night.

But that's the beauty of imagination, has its own laws and no law of physics can ruin a poetic concept.