Article Helge Kragh; (2017)
Is the Universe expanding? Fritz Zwicky and the early tired-light hypothesis

Book Giovanni Macchia; (2024)
Come può l'universo espandersi? Le origini della cosmologia moderna alla luce delle controversie degli anni Trenta

Book Martin Harwit; (2013)
In Search of the True Universe: The Tools, Shaping, and Cost of Cosmological Thought

Book Massimo Capaccioli; (2020)
L’incanto di Urania: Venticinque secoli di esplorazione del cielo

Book John Johnson Jr; (2019)
Zwicky: The Outcast Genius Who Unmasked the Universe

Book Weintraub, David A.; (2011)
How Old Is the Universe?

Article Smith, Robert W.; (2009)
Beyond the Galaxy: The Development of Extragalactic Astronomy 1885--1965, Part 2

Article O'Raifeartaigh, C.; McCann, B.; (2014)
Einstein's Cosmic Model of 1931 Revisited: An Analysis and Translation of a Forgotten Model of the Universe

Article Nussbaumer, Harry; (2014)
Einstein's Conversion from His Static to an Expanding Universe

Article Kragh, Helge S.; Lambert, Dominique; (2007)
The Context of Discovery: Lemaître and the Origin of the Primeval-Atom Universe

Article Tobias Jung; (2011)
Einsteins tatsächlich "größte Eselei seines Lebens"Einsteins tatsächlich "größte Eselei seines Lebens"Einstein's truly "greatest blunder of his life"

Article Harry Nussbaumer; (2018)
Einstein's aborted attempt at a dynamic steady-state universe

Book O'Shea, Donal; (2007)
The Poincaré Conjecture: In Search of the Shape of the Universe

Book Bartusiak, Marcia; (2009)
The Day We Found the Universe

Thesis Heather Stephanie Crandall; (2018)
The Expansion of a Legacy: Astronomy's Great Debate on the Size of the Universe

Article DeVorkin, David H.; (2000)
Quantum Physics and the Stars (V): Physicists at Mount Wilson Prior to 1922

Article Cenadelli, Davide; (2010)
Solving the Giant Stars Problem: Theories of Stellar Evolution from the 1930s to the 1950s

Article Hufbauer, Karl; (2006)
Stellar Structure and Evolution, 1924--1939

Book Roberto Battiston; (2022)
First Dawn: From the Big Bang to Our Future in Space

Book Paolo Bussotti; Brunello Lotti; (2023)
Cosmology in the Early Modern Age: A Web of Ideas