Example image of eyePlorer eyePlorer map for 'Radio telescope': Antenna (radio) Directional antenna Radio Radio astronomy Satellite Space probe Astronomical radio source Astronomy Electromagnetic spectrum Optical telescope Radio frequency Parabola Electromagnetic interference Observatory Radar Television Light pollution Valley Bell Labs Karl Guthe Jansky Noise (radio) Radiotelephone Frequency Hertz Shortwave Ford Model T Analog signal Celestial sphere Sidereal time Constellation Milky Way Sagittarius (constellation) Grote Reber History of radar World War II Chicken wire Mesh Angular resolution Arecibo Observatory Arecibo, Puerto Rico Zenith Arkhyz Russia Special Astrophysical Observatory of the Russian Academy of Science Effelsberg 100-m Radio Telescope Germany Green Bank Telescope United States West Virginia Cheshire