The Westerbork radio station in the Netherlands, consisting of 14 dish-shaped antennas, 25 metres in diameter each, is one of the most powerful radio observatories in the world.
Part of the European Very Large Based Interferometry (VLBI) network of radio telescopes, Westerbork and other European radio stations have been used to track the SMART-1 spacecraft in its orbit around the Moon in a test campaign conducted in May 2006. The same network of telescopes will now track SMART-1 until the end of its mission, due to take place through a small lunar impact on 3 September 2006.