1782 - John Goodricke[?] notices that the brightness variations of Algol are periodic and proposes that it is partially eclipsed by a body moving around it
1964 - Subrahmanyan Chandrasekhar and Richard Feynman develop a general relativistic theory of stellar pulsations and show that supermassive stars are subject to a general relativistic instability
... Moss, (United Kingdom)
1962 - Bruce McLaren[?], (New Zealand)
1963 - Graham Hill, (United Kingdom)
1964 - Graham Hill, (United Kingdom)
1965 - Graham Hill, ...