This web site contains four animated tutorials that demonstrate different astronomy concepts. These include: Lunar Phases shows how the motion of the moon relative to the Earth and Sun change the appearance of the moon; Sidereal and Synodic Months demonstrates the rotation of the Earth around the Sun, and the rotation of the Moon around the Earth, defines different periods of time; Blackbody Curves demonstrates how the temperature, and other parameters, of a radiating black body changes the radiation curve; and Nearest Stars presents a 3-D map of the stars closest to our Sun, also showing their spectral type.