VLBI

Very Long Baseline Interferometry (VLBI) is a technique in astronomy that combines signals from multiple radio telescopes spread across large distances, often across continents. By syncing and analyzing these signals together, VLBI creates a virtual telescope with a much larger “aperture,” enabling astronomers to capture incredibly detailed images of distant cosmic objects like black holes and galaxies. Think of it as using a network of antennas to mimic a single, giant telescope, enhancing resolution far beyond what a single dish could achieve. This allows for precise observations that deepen our understanding of the universe.