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| Radio telescopes receive radio waves emitted by celestial bodies and convert those signals into images using computers and video displays. Since a single receiver big enough to collect signals from many light-years away would collapse under its own weight, engineers created the Very Large Array, west of Socorro, New Mexico. Twenty-seven, 82-foot-diameter dishes combine their signals to produce an image equal to one made by a telescope 22 miles across. The Array's dishes are linked by cable, which makes it the world's largest of this type. |
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