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Actually the 3D Astronomer Planets DVD is not just about the worlds. It is about the entire world. It includes data concerning the Sun, the Moon, the moons of all the worlds, 3840 near-earth asteroids, comets, meteors, greater than 100,000 celebrities, far-off galaxies, red dwarfs, white overshadows, red giants, quasars, pulsars, great voids, and also every little thing else that is known about deep space.