Ключевые слова: aerial, antenna, array, astronomical, astronomy, background, beautiful, blue, celestial, cloud, comet, communication, constellation, equipment, evening, galaxy, instrument, internet, landscape, light, milky way, nebula, network, night, observatory, outdoors, radar, radio, receiver, receiving, red, research, science, signal, silhouette, sky, space, star, station, summer, sunset, technology, telescope, transmitting, universe, wavelength,