Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. The most photogenic array of radio telescopes in the world has also been one of the most productive. The VLA , celebrating its twentieth year of operation, is pictured above in a compact formation in front of Tres Montosas , New Mexico , USA . The vast size of the VLA has allowed astronomers to study the details of super-fast cosmic jets , and even map the center of our Galaxy . An upgrade of the VLA is being planned .
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