Rainbow Above The VLA

Rainbow Above The VLA

. The Very Large Array, abbreviated VLA, operates at radio wavelengths. In this photograph, it is strikingly portrayed against the colors of a double rainbow. The VLA is a collection of radio telescopes interconnected electronically to provide a total of 351 pairs of telescopes. The combined signals obtain two hundred thousand pieces of information every hour, so giant computers are also required to carry out radio investigations of the Sun. (Courtesy of Douglas Johnson, Batelle Observatory, Washington.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University