Demetrios
Eginitis

University of Athens, Greece


Stavros
Plakidis

University of Athens


George
Contopoulos

Academy of Athens


Evangelia
Athanassoula

Aristotle University of Thessaloniki


Fred
Hoyle

Cambridge


Leon
Mestel

Trinity College, Cambridge


Walter
Baade

Mount Wilson Observatory


Edwin Powell
Hubble

Mount Wilson Observatory




Allan Rex
Sandage

Mount Wilson-Palomar (Physics Tree)




Simon David Manton
White

Max-Planck-Institut für Astrophysik

Francesca
Fragkoudi

Aix Marseille Université
(Options)

Thomas James
Tomlinson

Institute for Computational Cosmology, Durham University

Francesca FragkoudiX