Engineers on a radio antenna under construction with rainbow on the distance. The Very Long Baseline Array (VLBA) is a system of 10 radio telescopes controlled remotely from the Array Operations Center in Socorro, New Mexico. The antennas are spread across the United States from St. Croix in the Virgin Islands to Mauna Kea on the island of Hawaii, making it the world's largest dedicated, full-time astronomical instrument..This antenna at Pie Town, New Mexico, is now linked with the Very Large Array via fiber optics. It is the first part of the planned Expanded Very Large Array...(1988)