Night Photography includes images taken outdoors from after sunset to before sunrise. (Sunrises and sunsets are not night photography.) In general, it emphasizes light and light sources as the key defining elements of the composition. This can include everything from busy city scenes to quiet landscapes under a million stars. Usually high ISO's or long exposures and tripods are required to record the images but there is plenty of room for experimentation. Be creative! The biggest challenge is that the image must still have impact and sound composition. Make it a great image!