A radio telescope is an instrument that receives radio waves from space and finds the position of stars and other objects in space.
radio telescope in British English
noun
an instrument consisting of an antenna or system of antennas connected to one or more radio receivers, used in radio astronomy to detect and analyse radio waves from space
radio telescope in American English
(ˌreɪdioʊˈtɛləˌskoʊp)
Astronomy
a radio antenna or an array of antennas with the component parts, designed to receive, collect, and measure radio waves from celestial sources or spacecraft