Parkes Observatory is quite a historic telescope - it played an important role in the NASA mission which landed the first men on the moon. Completed in 1961, Parkes has the second largest dish in the southern hemisphere and is used primarily for radio tracking of spacecraft. Historically, it's best recognised as one of the three radio telescopes to receive a signal when TV began broadcasting from the cameras of the first moon landing. Such was the receptive quality of Parkes, NASA broadcast the signal they received for the entire moon bulletin.