What is the name of this Northern Irish astrophysicist that discovered PSR B1919+21
PSR B1919+21: PSR B1919+21 is a pulsar with a period of 1.3373 seconds and a pulse width of 0.04 seconds. Jocelyn Bell Burnell: Dame Susan Jocelyn Bell Burnell, (born 15 July 1943) is a Northern Irish astrophysicist.
i don't know