Lunar eclipse, 9 December 1992.
© Kevin Johnson / Science & Society Picture Library
The Moon at totality during a total lunar eclipse in which the Earth moves in front of the Moon and blocks off the Sun's light. The moon appears red because of sunlight reflecting back off the Earth's atmosphere. Photograph taken from West London at 23h 50m GMT, 9 December 1992, using a 4.5-inch reflecting telescope (focal length: 1500mm).