The Westerbork Synthesis Radio Telescope (WSRT) is a powerful radio telescope that uses a technique called "aperture synthesis" to generate radio images of the sky. The telescope consists of 14 steerable 25m dish antennas and enables astronomers to study a wide range of astrophysics phenomena. The WSRT is an open user facility available for scientists from any country. It is also part of the European VLBI network (EVN) of radio telescopes.