A brief history of radio astronomy - and some of the people who

摘要

Radio emissions from space were first observed by Karl Jansky at Bell Telephone Laboratories in 1932 who was investigating sources of static that might interfere with a 10 to 20 metre transatlantic radio service. He identified three sources of static-close thunderstorms, distant thunderstorms and a source of unknown origin which was determined to he from space - the centre of the galaxy in particular, which we now know to contain a supermassive black hole.