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George A.
Van Biesbroeck
Yerkes Observatory (Astronomy Tree)



Otto
Struve
UC Berkeley


Elis
Strömgren
Copenhagen University

Niels
Bohr
Copenhagen University

Hans Marius
Hansen
Copenhagen University

Otto
Struve
UC Berkeley




Louis George
Henyey
UC Berkeley


William B.
Hubbard
University of Arizona


Anton
Pannekoek
Amsterdam

Jan
Woltjer
Leiden (Astronomy Tree)







Robert Grant
Aitken
Lick Observatory (Astronomy Tree)


Gerard P.
Kuiper
University of Arizona


Carl
Sagan
Cornell


James B.
Pollack
NASA Ames Research Center (Astronomy Tree)

Mark S.
Marley
New Mexico State
(Options)

Charles
Walter
New Mexico State

Tyler D.
Robinson
University of Washington (Astronomy Tree)

Anna Sage
Ross-Browning
University of Idaho (Astronomy Tree)

Colin Orion
Chandler
Northern Arizona University

Denise C.
Stephens
New Mexico State

Christopher R.
Gelino
New Mexico State

Sarah E.
Moran
Johns Hopkins (Astronomy Tree)

Mark MarleyX