Ключевые слова: alien, antenna, army, astronomical, astronomy, baltic, broadcast, cloudscape, communicating, communications, copy space, data, dawn, digital, dusk, equipment, europe, exploration, federal, future, galaxy, global, information, internet, latvia, media, military, network, night, observatory, planet, radar, radio, remote, research, science, scientific, security, signal, sky, station, sunrise, sunset, system, technology, telecommunications, telescope, tv, universe, war,