Cygnus A was first spotted by Grote Reber in 1939. Here's a good bio from 2003. https://physicstoday.scitation.org/doi/10.1063/1.1611360 https://physicstoday.sc

Cygnus A was first spotted by Grote Reber in 1939. Here's a good bio from 2003. https://physicstoday.scitation.org/doi/10.1063/1.1611360 https://physicstoday.scitation.org/doi/10.1063/1.1611360