As bright and beautiful as the actual planet, the Mova Rotating Venus 4.5 in. diam. Globe provides hours of fun, education, and peaceful review. The surface color is influenced by the planet"s lava flows. Named for the goddess of love and beauty, Venus is one of the brightest planets visible to the naked eye. Take time to enjoy the rotation of this orb, which turns silently on its own when exposed to natural or artificial light, sitting upon its beautiful, engravable acrylic base. No wires or batteries - this globe rotates on the same principles of physics as Earth itself. A magnet inserted in the core of the globe propels rotation when the globe sits in a window or next to a light source. About Mova Globes: By using a unique design, highly efficient solar cells, and the Earth"s magnetic field, Mova has created a stunning line of globes that appear to rotate even though firmly rooted in place. This effect is created by placing a smaller globe inside the outer acrylic shell and filling the space between with a clear fluid. The inner globe floats in the center, while the solar cells and magnetic drive cause it to rotate. The graphic features of the inner globe are magnified by the acrylic shell and fluid, making them appear to be on the outer shell; this causes the illusion of movement of the entire globe. Ultra-efficient solar cells mean that your globe will rotate even in low light, using the energy from your room"s lighting. This automatic movement, coupled with stunning graphics, makes the Mova globe a perfect choice for any home or office. Elegant, clear acrylic stand. Realistically recreates Venus" revolution in space. Powered by solar energy and Earth"s magnetic field. Requires no batteries or electric power to function. Measures 4.5 diam. inches.