ABSTRACT
In this 400th year since the invention of the optical telescope, and in celebration of the New Vision 400 conference held in Beijing in 2008,* we discuss how new radio astronomical techniques have led to important discoveries in astronomy. We then describe how further technical developments are leading to new facilities such as the Atacama Large Millimeter/submillimeter Array (ALMA), the largest ground-based astronomical facility now under construction, and to the next-generation radio astronomy facilities, collectively named the Square Kilometre Array (SKA), or the SKA Program.
