Figure 23.9: The radio telescope at the Arecibo Observatory in Puerto Rico has a diameter
of 305 m. ( 1 )
Figure 23.10: The Very Large Array in New Mexico has 27 radio dishes, each 25 meters in
diameter. When all the dishes are spread out and pointed at the same object, they act like
a single telescope with a diameter of 22.3 mi. ( 7 )