Fred
Hoyle

Cambridge


Leon
Mestel

Trinity College, Cambridge


Walter
Baade

Mount Wilson Observatory


Edwin Powell
Hubble

Mount Wilson Observatory (Astronomy Tree)




Allan Rex
Sandage

Mount Wilson-Palomar




Simon David Manton
White

Max-Planck-Institut für Astrophysik

Tom
Abel

Stanford
(Options)

John H.
Wise

Stanford


Fen
Zhao

Stanford

Tom AbelX