The origin of the chemical elements (the atoms of which the universe is composed) was finally revealed in detail by these three astronomers and one nuclear physicist in 1957. Left to right, Margaret Burbidge, Geoffrey Burbidge, Willie Fowler, and Fred Hoyle.

Gamow, von Weizsacker and Bethe (1937 - 39)

Hans Bethe (1906 - 2005)

Ray Davis (1914 - 2006), Nobel Prize 2002