The Very Long Baseline Array (VLBA) is a network of ten radio telescopes spread across the United States, operating year-round as an astronomical and geodesy instrument. As a major component of Very Long Baseline Interferometry (VLBI), it combines signals from multiple telescopes to create high-resolution images of distant cosmic radio sources, track spacecraft, and conduct astrometry. Data collected at each antenna, along with precise timing from atomic clocks, are processed at a central facility to emulate a telescope the size of the array. VLBA partners with organizations like the U.S. Naval Observatory and NASA, contributing to multi-messenger astronomy and tracking space probes.
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The team used instruments including the Green Bank Telescope (GBT), the Very Long Baseline Array (VLBA), and the European Very Long Baseline Interferometric Network (EVN) to create an Earth-sized super-telescope.
The discovery of dark objects relied on a global network of radio telescopes, including the Green Bank Telescope, the Very Long Baseline Array, and the European Very Long Baseline Interferometric Network.
Radio measurements for the 1ES 1927+654 study were acquired from the Very Long Baseline Array, the Very Large Array in New Mexico, and the European VLBI Network.
The 10.6 to 10.7 gigahertz band includes the Very Large Array telescope in New Mexico, the Very Long Baseline Array with 10 sites across the United States, and the Green Bank Telescope in West Virginia.