The document describes three planets: Saturn, Venus, and Mercury. It provides key details about each planet, including its position from the sun, rotation rate, orbital period, composition, and notable features. Saturn is the 6th planet and has rings and over 30 moons. Venus spins backwards as it orbits the sun in 243 days, and is very hot with volcanoes. Mercury is the smallest planet closest to the sun, taking 88 days to orbit while rotating clockwise without any moons.