Crab nebula as radio source

The Crab Nebula was identified as a significant radio source in 1947 by using radio telescopes. This marked the first discovery of an optical object being a radio source, demonstrating the potential of radio astronomy for making new discoveries.
 John C. Bolton Australia 1947 Crab nebula as radio source

The Crab Nebula was identified as a significant radio source in 1947 by using radio telescopes. This marked the first discovery of an optical object being a radio source, demonstrating the potential of radio astronomy for making new discoveries.