Ключевые слова: aerial, antenna, array, astronomical, astronomy, background, business, comet, communicate, communication, dish, equipment, evening, galaxy, instrument, internet, milky way, nebula, network, night, observatory, radar, radio, radio telescope, receiver, receiving, research, satellite, science, scientific, signal, silhouette, sky, space, star, station, sunset, system, technology, telescope, transmitting, universe, wireless,