The Arecibo radio telescope, a large dish-shaped structure set in the ground. The NMSU 1-meter optical telescope, encased in a dome.
The Hubble Space Telescope, orbiting far above the Earth.
The 1,000-foot Arecibo radio telescope in Puerto Rico (upper left), the Hubble Space Telescope in orbit around Earth (lower left), and the NMSU 1.0-meter telescope at the Apache Point Observatory (right). [NAIC, NASA, & NMSU/APO]