"Radio waves are very long and so you need very large telescopes," said Rick Perley, who is working on the 21st century Expanded VLA, or EVLA.
“无线电波很长,因此你需要超大的望远镜,”21世纪扩展型VLA (EVLA)的研究者,里克波雷说。
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This image shows the eruption of a galactic "super-volcano" in the massive galaxy M87, as witnessed by NASA's Chandra X-ray Observatory and NSF's Very Large Array (VLA).