Monster of the Milky Way

Gr 7 Up-The film explores a rare cosmic phenomenon, the supermassive black hole, which is capable of consuming matter and energy. Astronomers and physicists explain Einstein's space/time theory and his conjecture of the existence of black holes, a bend or warping of space/time. Scientists featured in the film hypothesize that a black hole, many times larger than other black holes and even larger than the sun, exists near the center of our galaxy, the Milky Way. Many obstacles face the astronomers who try to find the black hole. Earth's own atmospheric gases distort images, a challenge which is overcome by using computer software to sharpen the images, developed by the program's only featured female scientist. Also, debris and cosmic dust obscure the center of our galaxy, which is overcome by using infrared lights on telescopes. The third and most daunting challenge is that black holes consume light and are invisible. However, the scientists are able to track emissions of energy and changes in the orbits of stars to pinpoint the likely location of the supermassive black hole. They offer theories about the origins of black holes and the creation of galaxies. Computer animation aids viewers' comprehension of advanced theories such as Einstein's concept of space/time. Sound and picture quality are excellent. The strong voice of the male narrator commands attention. The program will be useful in a classroom setting and is of particular value for the well-done computer animated visuals of our galaxy; however, since much of the content is theoretical, teacher guidance will benefit students.-Ryan Henry, Daviess County Public Library, Owensboro, KY (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.