The Canberra Space Centre resides in the grounds of the Canberra Deep Space Communication Complex, 35km southwest of the city. Pride of place goes to Deep Space Station 43, a 70m-diameter dish that has communicated with the likes of Voyager 1 and 2 , Galileo and various Mars probes. There are displays of spacecraft and deep-space tracking technology, plus a piece of lunar basalt scooped up by Apollo XI in 1969. A theatre continuously screens short films on space exploration.